BionX PL 350 Review

Bionx Pl 350 Electric Bike Conversion Kit 1
Bionx Pl 350 Electric Bike Black
Bionx Pl 350 Direct Drive Motor
Bionx Down Tube Battery
Bionx Second Generation Computer
Bionx Brushless Gearless Hub Motor
Bionx Pl 350
Bionx Pl 350 Motor
Bionx Pl 350 Battery Pack
Bionx Pl 350 Gen 1 Lcd Console
Bionx Pl 350 Wiring
Bionx Pl 350 Electric Bike Conversion Kit 1
Bionx Pl 350 Electric Bike Black
Bionx Pl 350 Direct Drive Motor
Bionx Down Tube Battery
Bionx Second Generation Computer
Bionx Brushless Gearless Hub Motor
Bionx Pl 350
Bionx Pl 350 Motor
Bionx Pl 350 Battery Pack
Bionx Pl 350 Gen 1 Lcd Console
Bionx Pl 350 Wiring


  • A line of three 350 watt, 37 volt electric bike conversion kits
  • Available in mid-frame or rear rack styles to fit just about any bike
  • Kit offers good power and is relatively light weight, 8.8kg (19.4 lb) to 10.2kg (22.5lb)
  • Control system and LCD are easy to use and offer regenerative braking, pedal assist and throttle mode

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Video Review

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PL 350


$1,499 USD (Up to $1,799 for Larger Battery)

Suggested Use:

Neighborhood, Commuting, Urban

Electric Bike Class:

Throttle on Demand (Class 2)
Learn more about Ebike classes


2 Year Covering Manufacturer Defects (1,000 Charge Cycles)


United States, Canada

Model Year:


Bicycle Details

Total Weight:

22.5 lbs (10.2 kg) (Optional 19.4)

Motor Weight:

9.5 lbs (4.3 kg)

Wheel Sizes:

20 in (50.8cm)26 in (66.04cm)28 in (71.12cm)


Optional Black or Silver Spokes and Rim, Battery Comes in Mid-Frame 37 Volt 9.6 Amp Hour Configuration or 37 Volt 6.4 Amp Hour Rear-Rack Configuration

Electronic Details

Motor Brand:


Motor Type:

Rear-Mounted Gearless Direct Drive Hub
Learn more about Ebike motors

Motor Nominal Output:

350 watts

Battery Voltage:

37 volts

Battery Amp Hours:

9.6 ah (Optional 6.4)

Battery Watt Hours:

355.2 wh (Optional 236.8)

Battery Chemistry:


Charge Time:

4 hours

Estimated Min Range:

35 miles (56 km)

Estimated Max Range:

55 miles (89 km)

Display Type:

Digital LCD


Speed, Odometer, Battery Capacity, Assist Level

Drive Mode:

Torque Sensing Pedal Assist, Trigger Throttle

Top Speed:

20 mph (32 kph)

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Written Review

The PL 350 kit has been one of the most trusted, high performing electric bike conversion options available to enthusiasts and manufacturers for many years. It offers enough power to quickly accelerate to 20mph and can easily climb hills in throttle mode while maximizing range with regenerative braking. This conversion kit comes in three configurations focused on power and distance or reduced range at a lower price point. Overall, it’s durable and feature rich but will cost you more than some other kits, and is a bit more involved to install. The primary benefit is that it allows you to focus on finding the perfect bicycle for yourself first and then electrify it later.

The PL350 name denotes the 350 watt rear hub motor that is at the heart of this kit. It’s brushless and gearless meaning it will coast with minimal friction and have fewer parts to wear out over time than an equivelent geared hub motor option. It can also take advantage of regenerative braking and comes with a neat “negative mode” built right in to the computer so you can use the motor almost like an engine brake when coasting down hills to charge the battery. While we’re on the subject of names, the DT and RR letters for these kits denote “down tube” or “rear rack” battery mounting option.

This kit is flexible and will fit most bikes because it’s available in three wheel diameter options including 20″, 26″ or 700c which is equivalent to 29″. That’s great because it means you can use it with a folding bike, a mountain bike, a recumbent bike or even a road bike! The rims themselves are available in silver or black spoke options to match your setup which is nice.

Whether you choose the BionX PL 350 in RR M, RR L or DT L the motor stays the same. What changes is the battery size and mounting configuration as touched on earlier. the battery setup is what makes this kit really versatile but also potentially confusing at first. Why are there three versions of the BionX 350 kit? It’s mostly so you can optimize for distance and bicycle frame style. Here are the three options and a quick rundown on what each offers:

  • PL 350 HT DT L: Offers mid-frame or “down tube DT” battery mount designed to distribute weight evenly across the frame. Battery is 37 volt with 9.6 amp hours of range at just 8.8kg (19.4lb)
  • PL 350 HT RR L: Offers “rear rack RR” battery design with the same battery specs as the HT DT L and just mounts on a rear metal rack which adds some weight .4 kg (3.1 lb) and makes the bike rear-heavy. This may be your best option if your bike is a step-through design or recumbent because the mid-frame pack may not fit on your frame.
  • PL 350 HT RR M: Positioned for value, this kit has fewer amp hours at 6.4ah so it just won’t go as far as the other two. It’s only available in the rear-rack design and weighs 9.3kg (20.5 lb) total which is in between. The primary benefit of this version is that you’ll save money.

The first picture below shows the DT (down tube) option with the gray triangle pack and the second picture shows the RR (rear rack) option which mounts to a metal rack. If you choose the second option make sure your bike has threaded eyelets for mounting a rack.

My personal favorite setup is the PL 350 HT DT L kit because it offers the best performance in both power and range and mounts to the downtube instead of a rear rack. Bolt-on rear racks can get rattly over time and position more weight at the rear end of the bike making them harder to lift, mount on cars and easier to slide out when going around corners. This is because the hub motor is also heavy so now you have two heavy systems both positioned at the back of the bike. Many purpose-built electric bikes have their rear racks welded onto the bike frame vs. bolted on because it makes them more durable. While this is impossible for an after market kit like the BionX, it also makes them heavier so what you get here from BionX is a decent solution.

Regardless of which battery size and mounting option you choose, the computer for this kit is the same and it’s great. It lets you select from throttle mode where you don’t have to pedal the bike or pedal assist mode where the bike matches or multiplies your pedaling input and a negative regen-mode that applies resistance in the rear hub motor while converting your mechanical energy back into electricity to charge the battery. I’m a big fan of this third option because it not only saves your brakes when coasting down hills, it takes the thinking out of regeneration vs. other bikes where you actually have to apply the brakes to activate it. Just click the down button on the LCD console and you go from pedal assist to throttle and then down into the four regen options, the lowest one slows you down the most while adding the most energy back into the battery.

The PL 350 ranges in price from $1,499 to $1,799 depending on which battery configuration you choose and that may double the overall price of your bike. These kits are expensive but they are also very high quality and offer more features than almost any other electric bike conversion kit out there. Unlike some other kits, they mount to the rear wheel which applies force more naturally to the frame. This is great once you’ve got the kit installed but the installation process itself takes more time and is much more involved. In addition to running wires around your frame you have to setup the rear cassette gears and make sure they all align properly with the chain. The most challenging bit though, is setting up the regenerative brake sensor on the bicycle brake lever. Many shops will let you pay them to add this kit directly to your bike but that could cost upwards of $100 thus adding even more expense to the conversion.

I’m often torn when it comes to these kits because it feels like you end up spending as much money as if if you had bought a fully assembled electric bike from the start. It really depends on the individual, if you’re tech savvy and enjoy tinkering, this could actually be a lot of fun. If you care a lot about the ride or setup of a specific bike that can’t be matched by a purpose built ebike, then this kit could be your best option. But if you aren’t into DIY or don’t have space and tools then this could be a real pain. If you like the design and features BionX offers, check out one of the pre-built electric bikes that leverage their technology. The GRACE Easy comes out later this year in the US and uses BionX hardware to power its bike. Note that it does not offer throttle mode, only power assist, but it’s a beautiful looking bike and you’ll save the headache of installation.

Whichever version of this kit you decide on you’ll be getting technology that is feature rich and high quality backed by a solid brand. I do recommend it and am very happy with the performance and durability over less expensive front wheel kits, it’s just a bigger investment of time and some awareness for what you’re getting into. I personally prefer working with bike shops to have them install vs. trying to do it myself because my tools and space are limited. Good luck!


  • Works with almost any bike, multiple wheel sizes and rear rack or mid frame battery design
  • Battery can be charged on or off the bike
  • Battery locks to bike to deter theft
  • Hub motor runs very smoothly and quietly because it is gearless and brushless
  • Built in regenerative braking with “negative mode” for recharging going down hills
  • System offers pedal assist, throttle mode or recharge mode, computer is easy to use
  • Rear-wheel hub motor exerts force onto the part of the frame that is designed to handle it vs. front hub designs
  • Pedal assist responds to torque vs. bottom bracket sensor making it easier to install and more responsive
  • Works with disc brake setups as well as v-brakes


  • If you choose the mid-frame battery pack design it will take up the spot where your water bottle would mount
  • If you choose the rear-rack battery design it makes the bike rear-heavy, harder to lift
  • This kit is more expensive than other conversion kits but does provide a lot of features
  • Can be a hassle to install, especially for non-bike friendly people or those without stands
  • Throttle and computer may not mount as easily to road bikes with drop handle bars due to shape and size of tubes and grip tape
  • The system requires riders to reach two miles per hour when pedaling before throttle will engage
  • Kit is clean overall but the wires will not be integrated as with some fully built ebikes, can be more vulnerable and look tacky
  • Does not include built in lights, this requires separate systems and batteries to manage vs. fully integrated solution
  • Kit is only compatible with 135 mm axle size so check your mountain bikes carefully or bikes with thru axles


More BionX Reviews

BionX D-500 Review

  • MSRP: $2,499
  • MODEL YEAR: 2015, 2016

Top of the line 500 watt electric bike kit with a focus on acceleration and low end torque for climbing. Unique center-spoked design for improved comfort and wheel durability, narrow casing accommodates a larger cassette…...

BionX S-350 Review

  • MSRP: $2,099
  • MODEL YEAR: 2014, 2015

Versatile electric bike conversion set with four levels of assist, four levels of regen and throttle mode. Available with five battery pack configurations including two rear mount and three downtube mounted...

BionX P-350 Review

  • MSRP: $1,799
  • MODEL YEAR: 2014, 2015

A more affordable, less powerful electric drive kit from BionX with rear-mount battery design only. G2 console offers four levels of assist, four levels of regen and throttle mode with…...

BionX SL 350 Review

  • MSRP: $1,999
  • MODEL YEAR: 2013

Top of the line kit, 350 watt motor is ~2.5 lbs lighter than the older PL 350 model, includes advanced security features. Available in two designs to fit most bikes: mount to down tube or integrated into…...

BionX PL 250 Review

  • MSRP: $1,199
  • MODEL YEAR: 2013

One of the lightest electric bike conversion kits available anywhere, just 7.3kg (16.1 lbs). Mounts to water bottle eyelets on downtube of, distributes weight evenly front to rear...

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Falco Support
16 hours ago

Dear Mr. Nelson,

I wish to thank you for your continued interest in our company and products. Please see answers below:

1. Are you still pushing the six-phase motor?
Our motor technology is based on 5-phase motor architecture and is now patented. You may read about it here: We have two patents granted and several pending. Our latest evolution called eDrive is the integration with virtual reality training program such as Zwift. Here is the link to that:
Here are some comparisons for you to review:

2. How many US dealers sold more than 3 last year?
In order to stay a dealer, they have to sell a minimum of six systems a year. I am happy to send a dealer application and agreement if you like.

3. Why Trikes, recumbents, tandems, and cargo bikes? What's up with regular bicycles?
Our product is quite premium. Regular bicycle market has gone to very low price points and bicycle owners do not have the budget to afford our system.

4. Why were you selling the product when it apparently did not work reliably?
We offer 5-year warranty in the market. Why do we offer that warranty if there were reliability concerns? Even Bosch does not offer more than 2 years. Why are they selling their product even after having recalled twice? Why does Toyota continue to sell its cars after having recalled so many times? Why does Pedego continue to sell their bikes after having recalled 5000 Lithium batteries not so long ago?

5. What is your lowest price functional motor kit?
Kit is a derogatory word to describe our product. I request you not to use it. Here is the of our systems. Lowest is $1895.

6. If the UK dealer was so poorly equipped to handle your product, why did you allow him to become a dealer?
In business, it is called the learning curve. Business is a great teacher. You learn from your mistakes.

7. Referencing #6, why did you sell him so much product?
We did not sell him a lot. He had a number of prototypes and sales samples which were developed during the development stage and used during Eurobike.

8. Does Harry receive a salary, or straight commission?
Mr. Harry does not receive a salary or commission. He has placed his order recently and is very excited about it. He shared his excitement with this forum.

9. What turn-key ebikes are manufactured using your motor kit?
Our product is expensive for OEM applications. OEMs are normally looking for extremely low price points. Nevertheless, here are some who use Falco Systems.
Terra Trike EVO
Utah Trikes
Santana Tandem

10. Does anyone else on the planet make a controller compatible with your motor?
No. Our controller is embedded inside the motor.

11. Do you know who Eric Hicks is, and why he is not pushing his "double-speed, double-torque" motor anymore?
I know Mr. Hicks very well. I do not know about his products or his business model in great detail. I am Sorry.

Please do let us know additional questions or comments.

Rakesh Dhawan

Rakesh Dhawan
1 day ago

Dear Mr. Nelson,

Thank you for your interest in Falco.

Mr. Harry forwarded this thread to me. I thought it necessary to clarify few points as you have some knowledge about Falco.

I am afraid to say that Your facts are incorrect and outdated about Falco. That Dealer you refer to was a great friend of mine in the UK. I miss him everyday. We were like two brothers from different mothers. We were starting in Electric Bike business and he chose to become a dealer. He was trying to get into electric bike business with little or no resources and no ability to provide after sales support. Also, He and his staff thought they knew a lot about electric bike business and they dictated the specs of how the system should be used in spite of our repeated warnings. We learnt a great lesson. We do not allow that kind of discretion to any of our dealers today unless you are an OEM. When that Dealer faced a medical problem, he chose to get out of electric bike business. That was back in 2013.

Other fact is called Product evolution. Here are some questions for you to think about which could provide you some insight into Falco as a brand, as a philosophy and as a way to engineer.

1. Is BionX still in business?
2. What year did they start?
3. What customers do they have?
4. What problems did they face?
5. How did their product evolve over the years?
6. How many times did Bosch do a recall of their products in Europe?
7. Why Bosch is still in Business?
8. What year did Falco start?
9. What products Falco offered before and now?
10. How has Falco product evolved over the years?
11. What other products does Falco market or sell?
12. And the last but not the least, which company has the highest warranty in the world?

Answer to these questions will lead you to how Falco thinks about Electric Bike industry and how we plan to move forward.

Otherwise, please try not to downplay our tremendous sacrifice, blood and sweat, passion, commitment and entrepreneurship in making a small difference in the electric Bike space.

We have over 150 dealers in the US and several small OEMs. We specialize in converting Trikes, Recumbents, Tandems, Cargo bikes etc.

Our journey, Mr. Nelson has been to stay focused and deliver an extraordinary product to the market. We learn and improve every day and we have a very long list of extremely passionate and committed fans who use their Falco everyday for last several years. These fans know about our tremendous passion and staying power.

We have succeeded in making a difference in the life of countless number of our seniors and we will continue to do so.

I do not wish to sell my product to you or anyone. I do care about making a difference in people’s lives using our technology. That has been our driving force and our greatest passion.

I am happy to answer any additional questions or comments you may have.

Rakesh Dhawan
Falco eMotors Inc.

2 days ago

Harry i don't have a ebike but I have been studying e-assist kits for a Catrike recumbent trike. The recumbent shop where I bought my trike loves the Bionx and has more than he wished he had in stock=expensive paper weights. Falco looks like it would perform similar to the Bionx but the battery isn't proprietary, but they site states the five year warranty is void if you don't use their battery. Falco seems to appeal to the same market as Bionx. My concern is from reading various internet comments, for whatever that is worth, your credit card is charged at the time of purchase and a number of purchasers have experienced several months of delay before delivery. Sometimes all the parts are not in the delivery and it has taken more time to get everything. Utah Trikes recommends the wired display, not the wireless as they experienced problems with the wireless. I've read a couple of complains of controller over-heating but don't know if this is generally a problem or not. The up side is that it is highly programmable, check out Youtube videos, can run up to 28 mph, and has a good torque sensor which is a high priority for me. The down side is I suspect (I am just guessing) Falco is under capitalized and they use current cash coming in on new orders to complete and ship older orders. Additionally the owner is an electrical engineer, the product may be good or not, but I bet engineers are running the company and not someone with business experience. My "guess" is Falco will go the way of Bionx. I like what their website says about the product and apparently how it operates but I don't want to spend $2,200 for a Bionx like paper weight!

Ann M.
2 days ago

Yeah, Rakesh is very sharp and good communicating with customers. I've known him since his days at E+.
And yes, that is an older BionX system. We've installed a couple of these on other recumbents; very easy, straightforward install with good support from BionX. We're all hoping they find a buyer for the company; very messy situation they got into with GM Canada. Enuf! On to happy rides on that bent :)

3 days ago

@Ann, yes me too. As i did the research (hours and hours) It really came down to the only choice. Rakesh is one SMART guy. I had lengthy conversation with him. I am an electrical engineer working for Siemens in the industrial controls business unit. I know motors. Albeit, 3 phase induction motors, not DC motors. He has been refining and perfection this system for many years. There is nothing like it in the industry.
EXPENSIVE! but any other choice would have included compromises I was not willing to make. The open architecture, customization capabilities. 5 year warranty, software, engineering, both torque and speed sensors, on and on and on.

Rakesh is clearly very committed to his ideals. His energy is infectious!

I see a BionX on your avatar. They went belly up. Did they not? That sucks! Their system is quite the opposite of open architecture.

Alex M
4 days ago

Not anymore ;) ...

If budget is a priority or if you live in remote area - stay away from proprietary systems. Ebikes are not bomb-proof and are not going to be in foreseeable future. Replacing generic parts is cheaper in the long run than buying proprietary, and can be less hassle than having a dealer to do it.

I wonder where the OP found all those 5-star reviews. There are no stars in Court reviews, they are neutral. Sometimes even too neutral. And there is always a list of Pros and Cons at the end. When you need to find out more about particular model, there are no reviews anywhere else, other than occasional feedback from members here and short Yutube clips. Endless Sphere is a good source too, but it's more technical.

4 days ago

Hmmm, can you say BIONX? That's what I've got now, unfortunately. People had the same view of that kit before the company tanked, and now if I want to keep the motor I'll have to get the battery rebuilt- maybe not if I want to forgo some functions of the console. I'll take a Bafang BBSHD if I keep my current bike or a Grin kit for the Brompton, thank you. Riding pleasure for me has been based on me being able to diagnose and fix stuff myself, especially since I live in the boonies where most LBSs don't deal with electric motors.

4 days ago

I actually prefer 20" wheels. The fold for 20" wheels is more compact and much simpler.

I actually have a Monty and I've considered a BBSHD conversion, but I've learned to really hate this bike... I'm trying to make peace with it for lack of better alternatives.

I've had problems with the Bionx kit, so even though I've had it for two years my mileage is very low. I was on the forum before with a different gmail account that I forgot the password to- I've even forgotten the user name I used then. I still fight this thing throwing on resistance for seconds after I've applied the brakes, and no bike mechanic knows what's up and I never found a decent Bionx dealer. I was told to override that with the throttle, hehe, but I had it reprogrammed to CA Class 3, so I don't have throttle anymore, bad choice :( Yeah, I feel more than a bit of schadenfreude about what happened to the company...

I thought I had buyers for this damn thing a couple of times, but ABQ isn't a place where people know about e-bikes and I can't sell it for half of what I bought it for, so I'm trying to make it a more comfortable. I'm resigned to folding, unfolding, taking on and off the front wheel four times a day. It sucks. It sucks big.

Normally I have to fold it and roll it inside on my Travoy trailer here at the university, but in the summer I get away with bringing it inside w/o folding it :)

What I do like about it is I can use great tires (Schwalbe Marathon Tour Plus) unlike the fat tire bikes, it's lighter (only 50 lbs) than the fatties, and I seem to be able to ride this on windy days when MrCoffee in ABQ doesn't ride his Rad Rover. I have 28 gears (Paratrooper Pro.) It would make a nice BBSHD conversion, and a straightforward one, too but I have lots of work to do to make this thing comfortable. I just bought Jones H Bar handlebars so that I can ride in a more upright position to prevent my hands from going numb before 5 miles, and I need a seat with springs, as I can't use a seatpost suspension system with my Travoy trailer hitch. I have a bad knee and throwing it over this high frame scares me sometimes, depending on how much it is swollen. I would definitely do better with a smaller folder.

I have to flip the bike, attach the front wheel, unfold, flip the bike, take off the front wheel, fold, etc. so many times a day that I'm getting an upper body workout. I'm resigned to that for now, and I suppose it takes less time for that than going to the gym. I suppose that I hate gyms more than I've hated this bike. I use it more than my car now.

6 days ago

I have a 350W Bionx EVO (s) with the same issue - very little from the strain sensor. Not sure we have the settings right but I can't imagine it being anything but a hardware issue. I had it on BII for 15 mins and the shop said no codes, played with the settings with little or no change. It does work but barely. My EVO HB1 (large) was just stolen - and rode like mad (I had it chipped/unlimited). I got this other EVO (s) off craigs, but it's a small, so I fixed it up for my wife and she's riding it using the throttle. Loves it!

So here's my issue - I have 2 chargers, 2 batteries do I put NEW Bionx kit on her Liv bike?? That's the plan now, it's in the shop waiting a DL350W kit from back east. I like the Bionx system and have "spares" - but... warranty, who knows.


1 week ago

The benefit for me is my health. I was (I’m ashamed to admit) 70 lbs less when I rode my non-motorized mountain bike everywhere, stacked with groceries, laundry, whatever. An ebike will make that so much more pleasurable. I will die sooner if I don’t lose this weight. I want to enjoy whatever time I have left, and biking was the only excercise that I really enjoyed, but I lived in a rural area where I wasn’t breathing vehicle exhaust, dealing with heavy traffic, etc. The biggest drag was that I didn’t like non-motorized touring, which will be much more pleasurable with assist!

2 weeks ago

I started out 3 years ago with a BionX HD 500 road bike, an EVO disc brake model with 700C tires. Rode that for about 1 year then transfered the hub drive and battery into a tadpole trike I built over one winter. 1000 km's were put on the DF bike and in the ensuing 2 years another 1500 plus km's on the trike. Since the trike is so comfortable I often go on 40 km rides with litttle to no rider fatigue. After 3 years the bionx will still go 100 km,s or 60 miles to a charge if I keep the assist low and of course pedal as well. And it is mostly flat land around here. And zero maintenance issues. The 2nd ebike is a KHS fat tire bike I installed a Bafang 1000 watt mid drive motor into. That bike now has 1600 plus km's on it. It gets ridden year round, with the qualifer that winter use is on groomed single track trails most of which are 7 km's in length and I ride these 2 times around at a minimum per use. I did make an insulated foam cover for the battery and if the temp drops below minus 10 C I will sometimes slip a chemical hand warmer into the cover. It also has had zero maintenance issues. For the record I am 65 and now retired. Also these bikes are NOT economical to buy, build or operate in the short term. The only way to bring operating costs down is to ride and pile on the mileage. They are cheap to charge up but since each cost $3000 roughly it takes awhile to realize a financial benefit. How ever the benefits of all the cycling is priceless.

2 weeks ago

It has some cool features especially when connected to heart rate monitor, offers turn to turn navigation, gps map plus great analytics after your ride. However i found it still buggy, heart to pair with blue tooth second time around after stop start, mph to kmh conversion and frozen screens. Hope there will be soon an upgrade to fix these issues. Last release was early 2017.

formatie nunta iasi FORMATIA ATLANTIC
3 years ago

heloo please i need help  look at this
3 years ago

It looks like there is something wrong with your system, maybe the shop can help you diagnose it. You can contact for help as well. I am not sure what the problem is but I wish you luck and invite you to share back here once it is resolved.

Gardener Rob
4 years ago

Are BionX the best choice for getting kits to put on bikes? I have a friend that is interested in electrifying her bike to. She wants something with a decent amount of power as she lives in the same area as me, its very hilly and she wants something that will really give her a lot of assistance and also good range. Could you recommend a kit?
3 years ago

I like BionX because they are quiet, offer a good warranty and come with features like assist, throttle and regen. The display is great (and removable) and now they offer a super high torque model called the D-Series for use off-road. The company sells more expensive stuff than some others out there but it's one of the most polished and that's why companies like Mercedes SMART used it on their Ebike.

seth leventhal
4 years ago

i bought a yuba el mundo with 48v bionx system. the yuba is great the bionx hasn"t worked since the first couple of days,the battery wont charge a month later not a very timely response from bionx to my dealer. . if your easily frustrated stay away from bionx.
4 years ago

+seth leventhal Aw, that's a bummer. Sounds like your shop isn't handling this very well... Wish there was something I could do to help, maybe one of the other shops would help you out if you offered to pay for their time? It's a tough call. I hope your shop comes through for you eventually :/

seth leventhal
4 years ago

+Electric Bike Review thank you for the reply i would agree with you the bionix seems to be a quality system i am a big heavy guy and i was pleased with the power and i couldn"t detect much excess heat from the hub after going up hills my frustration is with bionx service network. my dealer didnt have the ability to service the bionix  system, hes gotten the bionix software thats taken a month. the other issue was other bionx dealers that were capable of diagnosing the system wouldnt touch it as it was purchased elsewhere and still on gurantee. so ive had it for a month now and it still hasnt been diagnosed.
4 years ago

Hi Seth, that's a bummer to hear! BionX usually works directly with shops to handle warranties and run tests on their kits. They have a really sophisticated system that can identify issues or even upgrade firmware to make fixes remotely but it requires the shops help. I hope yours works eventually, the elMundo is a great bike, I've tested it here:

4 years ago

Do she get that bike over in the U.S?
4 years ago

Yep, this ebike is probably three years old today (2014) and she made it from a frame and a BionX kit that she ordered separately, it's pretty custom - designed to be smaller since she was a little bit shorter :)

4 years ago

Where's the controller? Is it possible to do a self-build without a spaghetti junction controller?
4 years ago

I believe the controller is built into the battery pack housing and you might be able to use a Cycle Analyst in place of the display unit that comes stock? So you'd buy a replacement BionX battery, your own motor and a CA? I'm just guessing here... The BionX stuff is fairly refined and you could end up wrecking the pack experimenting :)

4 years ago

only problem is that it looks totally dorky
4 years ago

Ha! Yeah, this electric bike is... unique ;)

4 years ago

Nice review, have you uploaded any videos on the SL350 48 volt kit? ( would be interested to see a comparison. Thanks again for the great video, will share - Jack

4 years ago

Sounds great, keep in touch! - Jack
4 years ago

+NYCeWheels Thanks Jack! I have a few more video reviews to process from my trip but after that it would be fun to make a guest post. Thank you for the opportunity! I've saved your info but you can also reach me any time through my site on the contact page as well :)

4 years ago

That would be great, we would be happy to have you in the shop! In the meantime, if you feel inspired to share in writing any thoughts you have on the Sl350 or any BionX related topic we would be happy to post it on one of our guest blogs, linking to your sites of course. Keep in touch, here's a link to our email contact:  best - Jack
4 years ago

I have not spent a lot of time with the 48 volt kit, thanks for pointing it out! I love your website, the videos you guys make and the bikes you carry. I'd love to swing by when I drive to the East Coast later this year, maybe I can review it then :)

4 years ago

Most electric assists are 'limited' by law to 20mph but my current kit in throttle mode will struggle to do 10mph if I'm not pedaling at all/on flat terrain. What's the speed of the throttle mode alone? What's the range on one charge without recharge?
4 years ago

+vanquishedseraph This looks like a great bike, I know several people who own and love Surly bikes. Another similar design that also uses BionX and has tons of accessories is the Xtracycle Edgerunner it has a bunch of really neat add-ons for hauling stuff and kids around.
4 years ago

Yeah, in twist throttle mode for the US top speed is 20mph but in pedal assist mode now ebikes are going up to 28mph (Specialized Turbo, Easy Motion Neo bikes and IZIP E3 Dash). It's hard to approximate range because the weight of the bike, wheel size, tire type, terrain and rider all have an impact and there are just so many variables with a kit vs. a pre-built ebike that it's harder to say. I list off some specs at the full review linked from the video description. You could also ask what people have been seeing by making a post in the Community forum at the site :)

4 years ago

I'm looking to replace my more rugged mountain bike that I've been using for transport to/from work with this:
5 years ago

Yeah, if you got a good deal on the Dahon Speed 8 then a BionX kit would be a good option for converting it to electric. It's really one of the fancier options though, if you want to save some cash you could get a Hill Topper kit from Clean Republic. It uses a front mounted wheel design for simplicity but depending on how much you weigh this might not be a huge deal, it still works but no pedal assist, only a throttle button.
5 years ago

Yeah, that's a decent bike with a good pricepoint! I'd love to hear what you think about it when you get to spend some time riding around - maybe leave a comment on the review I did back at the site :)
5 years ago

That makes sense but you could save some money by getting the iZip E3 Compact which is built on the Dahon one speed but uses their proprietary motor and rear mounted rack/battery. Alternatively, you could wait until early 2014 and get the Dahon Formula E18 which uses a Dahon frame and comes with a BionX 350 setup pre-installed! It was one of my favorite folding ebikes at Interbike this year. I have full reviews and videos of both bikes back at the ElectricBikeReview website :)
5 years ago

I hear ya! What ebike do you have and how has it been working? A first electric bike is a tough decision because they are so expensive with lots of different stats to understand. That's kind of why I created the website and these videos... my first ebike was a little disappointing and I wanted to share as I and learned my way forward ;)
5 years ago

Yeah, that's a great question... I guess every bike is different, sometimes I get concerned about front-hub motors because the front fork seems more vulnerable, especially if it has a shock built on. The rider size and weight might also come into play, consider the maximum load the bike is designed for and then factor your weight plus the battery/motor. A rear hub puts the force right where a pedaler would so that's an advantage.
5 years ago

That's awesome! I think there are some gyms out there that actually do harvest electricity from users working out and use it to power the lights (search for The Great Outdoor Gym Company) pretty cool :P
5 years ago

Yeah, I agree on the color options suggestion. I saw a customized BionX bike recently that had been painted black to match the bike and it looked amazing, not sure how durable the paint would be, also a hassle to do.

5 years ago

Would be interesting to hook this up to stationary bikes at the gym and give patrons small discounts on gym fees if they generate a certain amount of battery recharge. :-)

5 years ago

Not sure what you are getting at. My only point is that as a relatively small company, the manufacturer probably spent every research and design dollar they could afford to bring this to market. If they had spent 10% more resources on aesthetics, this would not be a state-of-the-art advancing product. It would just be a bit prettier.

5 years ago

How about we make them not suck before we worry about what they look like.

5 years ago

this is a WONDERFUL addition to a bike. i have had other "assist" bikes.. this is the rolls royce of kits and i REALLY love it.. I got as much as 45 miles to one charge it TRULY is worth the money. yes it was expensive. but itwas well worth it EXCELLENT video also.
5 years ago

Very interesting question Peter. My first guess is that it would take quite a bit of effort and require use of feet vs. hand. There are however multiple regeneration settings so you could go on the weakest one and maybe have success. Electric regeneration from kinetic motion loses energy in the form of heat so it's not perfect but in the kind of scenario you're thinking of that inefficiency could be made up through the functional benefits of some electrical device such as a computer etc.