Haibike SDURO HardNine 4.0 Review

Haibike Sduro Hardnine 4 0 Electric Bike Review
Haibike Sduro Hardnine 4 0
Haibike Sduro Hardnine 4 0 Yamaha Mid Drive Electric Bike Motor
Haibike Sduro Hardnine 4 0 Sr Suntour Xcm Spring Suspension Fork
Haibike Sduro Hardnine 4 0 Hydraulic Disc Brake Levers Emtb Handlebar
Haibike Sduro Hardnine 4 0 Basic Control Panel With Led Backlighting
Haibike Sduro Hardnine 4 0 Shimano Deore Xt Shadow Plus 9 Speed
Haibike Sduro Hardnine 4 0 Electric Bike Review
Haibike Sduro Hardnine 4 0
Haibike Sduro Hardnine 4 0 Yamaha Mid Drive Electric Bike Motor
Haibike Sduro Hardnine 4 0 Sr Suntour Xcm Spring Suspension Fork
Haibike Sduro Hardnine 4 0 Hydraulic Disc Brake Levers Emtb Handlebar
Haibike Sduro Hardnine 4 0 Basic Control Panel With Led Backlighting
Haibike Sduro Hardnine 4 0 Shimano Deore Xt Shadow Plus 9 Speed

Summary

  • One of the most affordable Haibikes in the line, available in four frame sizes, relatively lightweight, large 29er tires provide float and momentum at speed for cross country riding
  • Very capable mid-drive system (the same motor and battery as some higher-priced Haibike models), zero cadence assist feels responsive from starts and climbing
  • Powerful 180 mm hydraulic disc brakes for handling the increased weight, capable 100 mm suspension fork with compression adjust lockout, Shimano Acera 9-Speed derailleur
  • The charger is bulky and heavy but offers faster 4 Amp power flow, Fixed display offers fewer readouts but is actually very capable (battery percentage, range, etc.)

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Video Review

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Introduction

Make:

Haibike

Model:

SDURO HardNine 4.0

Price:

$2,599

Body Position:

Forward

Suggested Use:

Trail, Mountain

Electric Bike Class:

Pedal Assist (Class 1)
Learn more about Ebike classes

Warranty:

2 Year Motor and Battery, 5 Year Frame

Availability:

United States, Europe

Model Year:

2017

Bicycle Details

Total Weight:

47.61 lbs (21.59 kg)

Battery Weight:

6.5 lbs (2.94 kg)

Motor Weight:

7.6 lbs (3.44 kg)

Frame Material:

Hydroformed Aluminum Alloy 6061

Frame Sizes:

15.75 in (40 cm)17.71 in (44.98 cm)19.68 in (49.98 cm)21.6 in (54.86 cm)

Geometry Measurements:

Medium 50 cm: 18" Seat Tube, 22" Reach, 29" Standover Height, 29.5" Width, 72" Length

Frame Types:

High-Step

Frame Colors:

Matte Silver with Neon Green Accents

Frame Fork Details:

SR Suntour XCM RL-DS Remote Lockout, Steel Spring, Travel: 100 mm, Steel Seerer Tube 1-1/8", 100 mm Hub Length, 9 mm Quick Release Skewer

Frame Rear Details:

142 mm Hub Length, 9 mm Skewer with Quick Release

Gearing Details:

9 Speed 1x9 Shimano Acera, 11-34T

Shifter Details:

Shimano Altus M370, Rapidfire Triggers on Right

Cranks:

175 mm FSA Cranks, FSA, 38T Chainring, Alloy Chainring Guard, Plastic Chain Guide

Pedals:

MTB Plattform Pedal, Plastic

Headset:

A-Head Tapered, Ball Bearing, Sealed

Stem:

Haibike Components The Stem +, A-Bead, Bar bore: 31.8 mm Clamp, 7˚, Three Spacers

Handlebar:

Haibike Components TheBar + Topflat 720 mm Length

Brake Details:

Tektro HD-M285 Hydraulic Disc with 180 mm Rotors, Two-Finger Tektro Levers with Adjustable Reach

Grips:

Flat Textured Rubber

Saddle:

Selle Royal Sirio

Seat Post:

Haibike Components Aluminium 6061-T6

Seat Post Length:

400 mm

Seat Post Diameter:

31.6 mm

Rims:

Rodi FW Disc, Alloy Double Wall, Reinforcement Eyelets, Hollow Rim, 622x21c

Spokes:

Sapim Leader, Stainless Steel, 14G, Black 

Tire Brand:

Schwalbe Smart Sam, 29" x 2.25" (57-622)

Wheel Sizes:

29 in (73.66cm)

Tire Details:

Foldable, EVO, Tubeless Easy, Snakeskin Puncture Protection, Trail Star 3, 15-35 PSI

Tube Details:

Presta Valve

Accessories:

Neoprene Slap Guard

Other:

Locking Removable Downtube Mounted Battery Pack, 2.2 lb 4 Amp Charger, Cable Inlets, Replaceable Plastic Skid Plate, Gravity Casting Motor Mount Interface with CNC Milled Connection and Bearing Seat Points, Zero Cadence Assist

Electronic Details

Motor Brand:

Yamaha PW

Motor Type:

Mid-Mounted Geared Motor
Learn more about Ebike motors

Motor Nominal Output:

250 watts

Motor Peak Output:

500 watts

Motor Torque:

80 Newton meters

Battery Brand:

Samsung

Battery Voltage:

36 volts

Battery Amp Hours:

11.6 ah

Battery Watt Hours:

417.6 wh

Battery Chemistry:

Lithium-ion

Charge Time:

4 hours

Estimated Min Range:

20 miles (32 km)

Estimated Max Range:

70 miles (113 km)

Display Type:

Yamaha, Fixed, Backlit LCD Console

Readouts:

Current Speed, Charge Level Percentage, Range, Assist Level (Off, Eco, Std, High)

Drive Mode:

Advanced Pedal Assist (Wheel Speed, Pedal Torque, Pedal Cadence, Eco 50%, Std 150%, High 280%)

Top Speed:

20 mph (32 kph)

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Written Review

The HardNine 4.0 is one of a few entry level price point electric bikes from Haibike. With some scaled down mechanical components, and even a slightly scaled down electric system, this bike offer an excellent value in total. At $2,599 for a brand name production mid drive by Yamaha, warranty and all, it can be pretty tough to pass up for a budget minded cyclist looking to experiment with road or off-road pedelec riding. The HardNine 4.0 is a great bike anyway, offering a lot of bike (electronics aside) that doesn’t make any safety compromises. Brakes, shifters, frame, fork, tires; all up to par for most uses. While this is a lower-end Haibike, it shouldn’t be confused with a lower end bike from other companies. The HardNine 4.0 already has a much higher component grade than where other bike companies cap out.

Despite the lower entry price for the bike, the 4.0 still includes the same 250 watt Yamaha PW motor that all the other SDURO bikes use. Personally I really enjoy this motor on the road, as the 20 mph cut-off isn’t harsh. On the trails, it really hold its own against competing e-bike systems. The motor is cased with a protective plate that prevents impact from off-road obstacles, which is pretty nice for heavy use. Another great feature of the Yamaha motor is the ability to add multiple cogs to the front chainring. This particular bike only has one chain ring up front, but in other 5.0 models this feature is utilized. Although the motor is rated for 250 watts, the power output can easily keep up with, if not slightly out-do other 350 watt motors in the same category. The peak output of this motor can reach up to 500 watts and it offers 80 Newton meters of torque which is what I consider to be one of the most important considerations for climbing. I find it to be less noisy myself, but it’s hard to objectively measure how much motor noise the rider will experience. It’s going to increase as you raise the power level and pedaling RPM.

What is called the 400 watt hour pack technically holds 417 wh. The 36 volt 11.6 amp hour pack comes standard on this, and many other Yamaha powered bikes and offers above average range. On a personal road test we did from our shop, we encountered 31.4 miles of range on full blast pedal assist, until the battery died. Toning down the assist a little will increase the range, as pedaling the bike will reduce draw on the battery. Rather than clicking the battery pack down into a mount on the downtube like a lot of other e-bike modesl, the Yamaha pack slides in from the side and this allows for a lower top tube. The side swing battery may seem less robust, but the locking mechanism is strong enough to keep it on the frame without rattling. The battery has a loop on the top of the unit, which is nice for carrying around, but tough to stuff in certain bags or panniers on account of the length. Also, in my opinion, the charger for the Yamaha system isn’t the greatest. It charges just fine, but the cords are permanently connected to the rectifier, meaning that a fault in one of the cords would necessitate and entire replacement. Also, the battery terminal uses a clip feature to secure the charger to the battery, and requires the user to detach the terminal only 1/2 an inch from the battery itself. Pulling the charger cable may inadvertently yank the battery around or tip the bike.

The more basic Yamaha display mentioned earlier is an LED design, as opposed to their LCD display found on most other bikes. It’s mounted near the left grip, is backlit and has 5 buttons, 7 indicator lights and a 2 digit number readout. The read outs don’t provide as much information; it scrolls between 3 metrics: MPH, Battery Percentage, and estimated miles left. The left side assist up and down is pretty simple, though the display only indicates 3 levels of assist: ECO, STD, and HIGH. Haibike’s website claims a 4th level of ECO+, but this is likely a typo from the other LCD system. The display won’t show more typical things found on eBike LCD displays, such as an odometer, trip set, clock, timer, or power output. In my opinion, this display is a good way to save a few bucks on the overall price, but personally I enjoy the larger read out, and especially the odometer. Having this information on hand is very useful when relaying any electrical issues, personal range estimates, mapping progress and more. I also appreciate having the ability to remove the fancier display, especially when riding to a public rack or in a steep precarious downhill section where the bike could get dropped in a fall.

As a bicycle, the HardNine 4.0 is phenomenal for the price. It holds a brand name mid-drive system, that only compromises on the display. Also, the mechanical system is perfectly acceptable for an eBike in this price range. The hydraulic disc brakes work fast and bite hard, and the front shock is enough to handle obstacles on a moderate off-road ride. The 9-speed gear set doesn’t have the refinement, speed, durability or weight that a higher component level carries, but it’s enough to get going for a still-new bargain price. This bike excels in the hands of a casual rider, going off road in lighter trails. In less rocky cases like this, the 29 wheels can overcome obstacles fairly well, and the gearing has enough of a range to move through many inclines and a little bit of downhill. Steep uphill or hairy downhill will showcase the weaknesses of the bike, and will likely feel too big and stiff to handle. The bike will certainly operate just fine, but the rider will need a fair amount of balance and skill to overcome the higher frame (on account of the wheels) and the weight/rigidity of the frame. This is where 27.5″ wheels, full suspension, and seat post droppers begin to shine and when you’d be better off upgrading or switching platforms for all-mountain or trail use.

With little exception, it’s pretty easy to recommend this bike to someone who has looked it over and is still considering it. You get a lot of bike for the money. With most Haibikes, the sky is the limit and the rider may not utilize the higher component level. With the HardNine 4.0, the rider can easily see where the line is between performance and price. This is very nice for the budget conscience who don’t want to spend money on something they won’t use. My only gripes are the display, and the pedals. The plastic pedals will last for awhile, but may eventually break. Depending on use or behavior I’ve seen pedals like this brake from 300 to 5,000 miles. I didn’t mention this earlier, but the RPM limit on the Yamaha PW motor is 100 vs. 120 RPM on some of the newer motors or Bosch Performance Line. In practice, this means you will have to shift through gears more actively to achieve the full range of speed up to 20 mph. The display is impressive for being so basic, if you need the extra stats, that’s another area worth upgrading for. If you’re the kind of person who either doesn’t need to know those details, or you already have a cycling computer or app to track it, then the display functionally powers the system and you’ll likely love saving that money. Overall, I think that the Haibike HardNine 4.0 is a great bike for casual off-road, or even regular commuting. This review was performed by Mikey Geurts from Blue Monkey Bicycle in Utah in conjunction with Electric Bike Review and was paid for by EBR but was not sponsored or connected to Haibike in any way.

Pros:

  • Available in four frame sizes, this electric bike offers higher performance and fit, I love how the top tube is angled down for lower stand over height (the battery slides out sideways to help achieve this wide
  • Excellent weight distribution with both the motor and battery mounted towards the center of the frame and kept low
  • The motor is powerful and responsive offering smooth starts and stops (measuring pedal cadence and torque to activate as well as rear wheel speed), you get up to 80 Nm of torque which makes it an excellent climber if you shift gears appropriately
  • Cost saving 100 mm travel spring style front suspension in tendem with 29er tires should scale moderate obstacles with ease but does weigh slightly more and isn’t as nimble
  • Beautiful paint and graphics… Haibike has long been an EBR favorite because of their unique styling and matching parts
  • The battery can be charged on or off the bike frame and is easy to remove (though it does not rattle or feel loose when mounted to the frame), it weighs about 6.5 lbs so taking it off could make mounting the bike to car racks safer and easier (more space in the triangle), both wheels feature quick release which is very handy for trailside fixes of flats
  • The Yamaha LED display system doesn’t clog the cockpit with screens, pads or mounts, just one simple display has the really critical readouts and is easy enough to reach while still holding the left grip (I love that it shows battery percentage and range estimate)
  • Large 180 mm Tektro Hydraulic disc brakes work well without braking the bank and you get adjustable-reach levers which are perfect for riders who opt for the smaller frame size and may have shorter fingers, or those who wear thicker gloves during the winter
  • Quick release axles front and rear for easy repairs and quick compact transportability, one big advantage of a mid-drive is that the drivetrain itself is more traditional and easy to work with for regular bike shops, you can swap out the front chainring for different sizes and possibly even go for a double chainring if you add a second derailleur
  • The Yamaha motor produces less noise than Bosch and Shimano E-6000 in my opinion, it’s a bit less noticeable (especially when riding on a dirt trail where the tires are already making noise just from rolling)
  • The cockpit is very open and clean compared to other eBikes with mounts, grip buttons, throttles, displays and dual shifters, the handlebar is extra long which also creates a sense of space
  • You can run 27.5 tires on this bike, maybe even with a wider tread if it can clear the rear triangle. Having the mid-drive motor really is a life-saver for folks using different wheel sets for different rides
  • The fork includes a compression adjust with lock-out which is especially nice for flat terrain where 29er efficiency is at its best, or if you want to use this to commute around town on paved streets

Cons:

  • The display is more basic, smaller, and lacks some important features like odometer, trip distance, max speed etc., riding the bike regularly can either render that information less critical, as you may “mold” with the bike and understand it without prompting, or you may wish you had that information and remember every time you jump on the bike, the display is also non-removable and could take scratches and wear more readily
  • Aside from most of the other components on the bike, the plastic pedals are a bit more basic and could break under trail riding conditions, pedals are inexpensive however and you may want to go clipless at some point so this is a minor consideration
  • In our tests, the Yamaha system doesn’t get exceptional range from its system; 31.4 miles on full pedal assist on the road is perfectly fine, but it wasn’t close to the 48.5 miles we saw on the Bosch system under the same conditions
  • Unlike the Bosch drive systems, the Yamaha mid-drive doesn’t offer shift sensing which could lead to chain and sprocket mashing, learn to shift as the motor cuts out… when you stop pedaling momentarily and ease off
  • The battery charger seems unnecessarily large and bulky compared with some of the other options out there, I wish Yamaha would consider the magnetic EnergyBus port vs. their plug, which pushes in, and could get bent or knock the bike over if tripped on, the left crank arm passes it closely which makes it vulnerable… the charging unit itself is large and heavy and the cords don’t disconnect from the main unit
  • Haibikes tend to be more expensive and are frequently out of stock in popular sizes, I feel like they spread the line thin with so many options which can be disappointing if you visit a dealer and fall in love with a specific model or feature set
  • The drivetrain is alright, but not as durable, lightweight, or feature rich as the Deore XT with tension clutch for example, so you might get some chain bounce or drops easier
  • I like how smooth the motor winds down as you stop pedaling but it isn’t as instantaneous as some other systems, the traditional sized sprocket spins at the same cadence as pedaling so there’s less drag and noise when riding this electric mountain bike unpowered
  • Despite being a more athletic-oriented sporty electric bike, there are no bosses for adding a water bottle, you’ll probably need a hip pack or hydration backpack, there are a couple of threaded eyelets near the rear dropout which could possibly support a rack or fenders but no extra eyelets on the higher portion of the seat stays
  • I couldn’t figure out how to turn off backlighting on the display panel, I think it’s an always-on design which could be a little distracting at night if you prefer all-dark and stealth riding

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Christopher
4 months ago

comparing the hardnine 1.0 to this model, what are the main differences? does the hardnine 1.0 realy only have a max speed of 25 km/H when it has the same motor as the hardnine 4, and the exact same weight?

Reply
court
4 months ago

Hi Christopher, I think the speed limit for these products is based on geography where they are being sold. So, if you get a Haibike in the USA, it will offer ~32 km/hr top speeds (roughly 20 mph) but if you get it in parts of Europe, it will be limited to~25 km/hr (roughly 15 mph). Perhaps the Haibike HardNine 1.0 is only available in Europe? I found it on the Haibike website here and it appears to be a European model that complies with local legislation. I hope this helps to clarify, my guess is that the motor and battery hardware are the same, just the controller settings and firmware are slightly different to comply with the law.

Reply
Anonymous
4 months ago

If the input voltage for the yamaha battery chargers is 220v – 240v then do you need to increase the voltage from your household outlets which only give up to 120v both in the us and in canada? I ordered my bike from italy and it came with a european plug which is for the amount of voltage supplied in europe. If I only get an adapter without the voltage converter would that still be enough for the charger to work?

Reply
court
4 months ago

My guess is that a plug converter adapter should be all that you need. Maybe test it out? Perhaps it will charge slower… but I cannot say for sure. If you have issues, maybe you could order a separate charger from Haibike that is specific to your geography but will still work with the charger port design. You can also ask around in the Haibike Forums for advice because there may be users from all over the world with more experience than me with charging.

Reply
leon
2 weeks ago

Hi, Im looking for a bike that should cost no more than 2,2k € (about 2,5k$) for off road. I’ve seen the haibike sduro cross 4.0 that costs 2,2k€ and thought it was a nice ebike. does anyone have any experience with this bike?. Is it worth it? If not, do you know any other good bikes for this price tag?

Reply
court
2 weeks ago

Hi Leon! I didn’t perform this particular review but feel that the HardNine 4.0 is a great value model from Haibike. The styling is on point, the suspension is downgraded to spring vs. air and the 9-speed derailleur is average compared to Deore or Deore XT but you get the same reliable Yamaha PW motor system and battery. The display panel is also on the more basic side, but actually works pretty well! I love that it shows range estimate… It looks like you might be hailing from some European country, so I’d suggest looking at which brands are available there and then narrow down. I believe that a few US based shops will ship to Europe, Motostrano comes to mind. Perhaps this would be a way to find more options and compare prices. You can also ask around in the EBR Forums :)

Reply
leon
1 week ago

Hi, Im looking for a bike that should cost no more than 2,2k € (about 2,5k$) for off road. I’ve seen the haibike sduro cross 4.0 that costs 2,2k€ and thought it was a nice ebike. does anyone have any experience with this bike?. Is it worth it? If not, do you know any other good bikes for this price tag?

J
4 days ago

Hello Court – Great review as always. My LBS is offering a GREAT deal on a new 2017 SDURO HardNine 4.0. Do you see the 2018 SDURO HardNine 4.0 worth a $600 premium? Keep up the great reviews! Thank you

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court
4 days ago

Hi J, I did a quick search for the 2018 Haibike SDURO HardNine 4.0 and it looks identical to the 2017 model? I haven’t looked super close, but perhaps they just carried it forward? If you’re able to get a deal on the 2017 model, the biggest consideration would be battery degradation. All Lithium-ion batteries will slowly degrade over time, but at least you know it wasn’t abused if it was just sitting in a shop vs. someone’s cold or hot garage. I’d say go for it, but again, perhaps I’m missing some small changes. If you can identify specific changes, I welcome your feedback and then maybe I could add some color. Or you could ask for comparison help in the forums.

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ilythia
7 hours ago

I'm thinking of buying one, but what is the max weight (including bike)

desmond dickson
2 weeks ago

you need to back of when going thru your gear changes you get lot less gear clunk

Mark Marant
2 weeks ago

4-5 grand price you can get a 250 dual purpus bike

Mark Marant
2 weeks ago

for thay price range and up you can get a motorcycle

Mark Marant
2 weeks ago

2600 and no kickstand!

German Nobile
3 weeks ago

what an excellent review! you should be in national tV. keep the good work! and thanks for such a professional well done presentation.

DiGiTaLGrAvEDiGGA
7 months ago

this bike is currently going for $1900.00 USD

Tekolicious
8 months ago

When is the next time the manufacturers are going be doing those test rides in LA? I have seen them a couple of times on the channel ? Do they do them same time each year?

Sean Seo
8 months ago

Hi. Blue Monkey~!!

Blue Monkey Bicycles
8 months ago

Hi!

ForbinColossus
8 months ago

@8:09 That is disappointing - how can Haibike have such a detailed display but no ODOmeter?? Aside, from speed and battery life, how far you've gone is the key info I'd want.
(Also, Haibike desrves a serious critical dopeslap for making their needlessly confusing nomenclature even worse with Xduro/Sduro Bosch/Yamaha switcheroo .)

ElectricBikeReview.com
8 months ago

Yeah, I completely agree with the name change update thing... and will ask them about it at Interbike and express your frustration :)

Blue Monkey Bicycles
8 months ago

Dude.... the switcharoo is killing me. Between 2016 and 2017 they improved their model naming from letter code to scaling number code, but now with the XDuro and SDuro cross over, I feel like the brochure is a textbook.

RJC Studios LLC
8 months ago

Hey It's Mikey the Blue Monkey Bicycle Guy! Nice Review! Glad to see you are expanding.

ElectricBikeReview.com
8 months ago

Thanks! I think he did a fine job here and was excited to see the cheaper Haibike. I can't cover everything myself so it has been fun to team up with a few other good minds in the space :)

Blue Monkey Bicycles
8 months ago

Thanks man!

George Sears
8 months ago

An obvious comparison would be to the Voltbike Enduro. The MD on the Volt is the Bafang Max, frame integrated and torque sensor based. That's a pretty sophisticated motor. It just seems like if Bafang can create good torque sensor systems that low level manufacturers can integrate into frames and sell for considerable $$$ below Bosch/etc, they have a winner. The Max Ultra at around the legal limit for power seems to be available with both torque sensing and a throttle. There's a lot of stuff out there. Around $2k would be a better price, especially for people with no dealer support anyway. Monkey is a day's drive. Lectric may sell these out of Vegas.

ElectricBikeReview.com
8 months ago

Good thoughts George, I really like the new Bafang Max drive... it's powerful, quiet, and just a bit cheaper WITH throttle option

NFmangatoo
8 months ago

Jesus christ this bike for 2.5k, I understand the frame is pretty good but this is not what people is looking for in an electric bike. I don't really understand the sole purpose of this bike. In my opinion I recommend E-bikes to have long range and I know that is where the cost is, but it will be more convenient and reliable.

A H
8 months ago

Has this account been *_HACKED!_* those damn *_RUSSIANS!_* again.

ElectricBikeReview.com
8 months ago

Well, not exactly? I have teamed up with Mikey to post ebike reviews on occasion since I cannot get to them all ;)

Blue Monkey Bicycles
8 months ago

Russians stole my baby

yamahaJDM
8 months ago

Bosch

Carvell1122
8 months ago

Court could u please review the Specialized Vado line 2.0 3.0 and 5.0 I'm considering getting one? Your review would help a great deal.

ElectricBikeReview.com
8 months ago

Hi Carvell, I will keep an eye out for the other Vado models but only had access to the 6.0 during a press event earlier this year. I thought they woudl have others and staged some reviews for the 3.0 and 5.0 but that never happened and no shops around me have had them. In any case, the 6.0 has a lot of good info if you haven't seen it yet: https://electricbikereview.com/brand/specialized/

The Mute
8 months ago

Who are you ?

Blue Monkey Bicycles
8 months ago

My name is Mikey.

Eastcoast Chef
8 months ago

Bottom of the barrel

Blue Monkey Bicycles
8 months ago

Yeah, I could have said that better. Bottom of Haibike's barrel anyway. It's a pretty high barrel.

Seb K
8 months ago

Guys his name is Court not Curt !!!

ElectricBikeReview.com
8 months ago

Haha, you got it Seb! Thanks :P

Seb K
8 months ago

Sees new video instantly pop up . Checks time stamp - uploaded 4 hours ago . Oh Youtube you make me so mad !!!

ElectricBikeReview.com
8 months ago

Lol, oh YouTube...