Haibike SDURO Full FatSix Review

Haibike Sduro Full Fatsix Electric Bike Review
Haibike Sduro Full Fatsix
Haibike Sduro Full Fatsix 396 Watt Hour Side Mount Battery Pack
Haibike Sduro Full Fatsix Plastic Skid Plate Yamaha Electric Motor
Haibike Sduro Full Fatsix Locking Grips Removable Remote Button Pad
Haibike Sduro Full Fatsix Remote Lockout Air Suspension Fork
Haibike Sduro Full Fatsix 500 Watt Yamaha Mid Drive Dual Chainring
Haibike Sduro Full Fatsix Schwalbe Jumbo Jim 26 X 4 Tires
Haibike Sduro Full Fatsix Rockshox Monarch Rear Suspension
Haibike Sduro Full Fatsix 203 Mm Hydraulic Disc Dual Piston Brake
Haibike Sduro Full Fatsix 197 X 12 Mm Rear Axle
Haibike Sduro Full Fatsix Electric Bike Review
Haibike Sduro Full Fatsix
Haibike Sduro Full Fatsix 396 Watt Hour Side Mount Battery Pack
Haibike Sduro Full Fatsix Plastic Skid Plate Yamaha Electric Motor
Haibike Sduro Full Fatsix Locking Grips Removable Remote Button Pad
Haibike Sduro Full Fatsix Remote Lockout Air Suspension Fork
Haibike Sduro Full Fatsix 500 Watt Yamaha Mid Drive Dual Chainring
Haibike Sduro Full Fatsix Schwalbe Jumbo Jim 26 X 4 Tires
Haibike Sduro Full Fatsix Rockshox Monarch Rear Suspension
Haibike Sduro Full Fatsix 203 Mm Hydraulic Disc Dual Piston Brake
Haibike Sduro Full Fatsix 197 X 12 Mm Rear Axle


  • One of the only full suspension fat electric bikes I've seen, quality hardware including 20 speed Shimano Deore XT drivetrain, solid 2 year motor and battery warranty with 5 years on the frame
  • Powered by the Yamaha mid-drive ebike system with 500 watt motor, Zero Cadence pedal assist, 80 Newton meters of torque to move the tires through soft terrain
  • Quick release thru-axles front and rear makes transport and maintenance easier, side-slide battery allows the top tube to slope down for lower stand over height, the bike is available in three frame sizes for improved fit across body types
  • Lower pedal cadence activation ~80 RPM vs. 95 to 100 RPM on the XDURO Haibikes, no shift sensing, large clunky charger, the bike is basically already sold out and might be difficult to find

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Video Review

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SDURO Full FatSix



Body Position:


Suggested Use:

Trail, Mountain

Electric Bike Class:

Pedal Assist (Class 1)
Learn more about Ebike classes


2 Year Motor and Battery, 5 Year Frame


United States, Europe

Model Year:


Bicycle Details

Total Weight:

53.5 lbs (24.26 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:

16.53 in (41.98 cm)18.11 in (45.99 cm)19.69 in (50.01 cm)

Frame Types:


Frame Colors:

Matte Grey with Black Accents

Frame Fork Details:

RockShox Bluto Suspension Air/Oil with Rebound Adjust, PushLoc Remote Lockout, 120 mm Travel, 15 mm Thru Axle, Tapered Head Tube

Frame Rear Details:

RockShox Monarch RT3 Air Shock with Rebound Clicker and 120 mm Travel, 197/12 mm Thru Axle

Gearing Details:

20 Speed 2x10 Shimano Deore XT M786 Direct Mount Front Derailleur, Shimano Deore XT M768 Shadow Plus Rear Derailleur, 11-36T Cassette

Shifter Details:

Shimano Deore XT SL-M 780 Rapidfire on Left and Right


FSA CK-745 Cranks, FSA X-10 Chainring, 44T


XLC Freeride Platform, Cage Style


FSA No. 57, A-Head, Semi-Integrated, Tapered


SDURO Aluminium, A-Head


SDURO Lowriser Aluminium

Brake Details:

Magura MT5 Hydraulic Disc with 203 mm Front and 180 mm Rear Rotors, Magura MT5 Levers


XLC Ergo Sport, Rubber, Lock On


SDURO Active

Seat Post:

Aluminum Alloy

Seat Post Length:

350 mm

Seat Post Diameter:

31.6 mm


Superlight Aluminum Alloy, Double Wall


Stainless Steel, Black

Tire Brand:

Schwalbe Jumbo Jim, 26" x 4"

Wheel Sizes:

26 in (66.04cm)

Tire Details:

Tubeless Ready, Snakeskin

Tube Details:



Locking Removable Battery Pack, Quick Release Wheels and Seat Tube, Cable Inlets, Replaceable Plastic Skid Plate, Gravity Casting Motor Mount Interface with CNC Milled Connection and Bearing Seat Points, Zero Cadence Assist, Shimano HG 74 Chain

Electronic Details

Motor Brand:


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:


Battery Voltage:

36 volts

Battery Amp Hours:

11 ah

Battery Watt Hours:

396 wh

Battery Chemistry:


Charge Time:

4.5 hours

Estimated Min Range:

25 miles (40 km)

Estimated Max Range:

60 miles (97 km)

Display Type:

Removable, Backlit LCD Console


Trip Distance, Total Distance, Current Time, Trip Time, Maximum Speed, Average Speed, Current Speed, Charge Level (10 Bars), Range, Cadence, Assist Level (Off, Eco+, Eco, Std, High)

Display Accessories:

Independent Button Pad

Drive Mode:

Advanced Pedal Assist (Cadence and Torque, Eco+: 50%, Eco: 100%, Std: 180%, High: 280%)

Top Speed:

20 mph (32 kph)

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Written Review

The Haibike SDURO Full FatSix is one of the only full suspension, mid-drive, fat tire electric bikes that is being purpose-built by a leading ebike company… and it’s awesome. I do have a couple gripes here including the large clunky charger that Yamaha provides but the battery pack can be charged on or off the frame. And while I like the quiet operation, powerful 80 Nm torque, 500 watt rating and Zero Cadence response of the mid-drive I’ve found that it operates between a lower pedal cadence than Bosch (on the XDURO line) and doesn’t offer shift sensing. With those points made, let’s discuss where this electric bike really shines! The thing looks awesome, doesn’t weigh nearly as much as I thought it would (at just ~53 lbs) and is reasonably priced at $5,300 compared to similar offerings that either don’t offer any suspension or are hardtails (with just front suspension).

Sure, fat tires help to dampen vibration and smooth over bumps (especially when running with low PSI) but you can’t beat 120 mm of true suspension and the Full FatSix comes with air shocks by RockShox including remote lockout on the front and clicker adjustability for the rear including rebound. Depending on the type of riding you do, a seat post dropper could be added and the bike could go from sand/snow fun to actual mountain bike riding and some downhill. How awesome would it be to mountain bike on partially snow-covered trails or across sand dunes?! I really enjoyed riding the Easy Motion Big Bud Pro recently which offered all-wheel-drive to improve handling and climbing but it had no suspension and weighed seven pounds more. The motor systems used for the Haibike Full Fat Six are durable, mounted low and center for stability and very efficient – leveraging your drivetrain to benefit as you shift up or down.

This is a Class 1 electric bike with pedal assist only making it more acceptable on trails and with the black paint and slim battery it looks pretty stealthy. Operation is fairly quiet but still powerful and quite responsive. You get two chain rings up front with ten sprockets in the rear so the cockpit becomes a tad bit more crowded (shifters on both sides in addition to the display and button pad). I like user interfaces and really appreciate the removability of the display for transport or locking outside. The display is large and easy to read with persistent backlighting. The button pad is reachable, very durable feeling in terms of water resistance and even has a built in Micro USB port to maintain electronics like phones for GPS or music.

It’s really impressive to me that this bike is being made available in three frame sizes… it’s such an awesome concept and the size range and sloping top tube (enabled by the side-mounting battery) mean more people can hop on and enjoy. Be sure to adjust the air suspension properly so you can actually enjoy the performance it’s capable of. The one other downside right now is that the bike appears to be nearly sold out. Quite a few Haibike models arrived late in 2016 and many people have been pre-ordering. Furthermore, I’m hearing the bike was also popular in Europe and their market is larger than the US right now so it’s possible we just got fewer to begin with. At the end of the day, this is an expensive but super fun and capable electric mountain bike with fat tires and full suspension. It’s not just for show, the components are solid and the frame felt pretty rigid given the setup.


  • I was asking about good racks for a fat bike that’s electric (being a bit heavier) like this and Matt (the Haibike rep) recommended the Saris SuperClamp which has optional fat-bike specific trays
  • I think it’s amazing that this bike is available in four frame sizes… it seems unique and niche and isn’t especially cheap at $5,300 so to have choices like this is great! Should fit taller or shorter riders well and the top tube is angled thanks to the Yamaha side-slide battery so stand over is lowered
  • Despite having larger heavier wheels and tires and full suspension the frame flex wasn’t too bad, there was some but it still felt tight and handled well, battery and motor weight is low and centere
  • This thing is surprisingly light considering it’s a fat bike with full suspension… at ~53 lbs it’s lighter than a lot of hardtail e-mountain bikes without fat tires
  • Both RockShox suspension units are adjustable so you can reduce bob, the front has remote lockout which is nice considering the fat tires already add some good cushion
  • Awesome brakes… you get Magura hydraulic with dual piston (to reduce heat) and extra large discs (203 up front and 180 in the rear)
  • You get thru-axles front and rear which provide stiffness and strength, I find that they also make it easier to take the wheels off and line them back up when doing maintenance, the rear is custom length at 197/12 mm
  • with quick release wheels, seat tube, a removable battery and removable display panel you can significantly reduce weight and size for transporting this ebike and that’s important given the size of the tires
  • The display panel is large, easy to read, backlit and removable! I like that the button pad is easy to reach, well sealed and has an integrated Micro USB port for charging accessories
  • The Yamaha mid-drive motor operates fairly quietly in high and mid level gears (when it’s not spinning super fast)
  • Replaceable plastic skid plate protects the motor from impact and is color matched so it looks great, overall Haibike makes great looking frames with quality paint and matching accessories like grips


  • The bike is awesome looking and one of a kind in the market right now (full suspension fat bike!) but apparently it’s almost completely sold out so even if you want one… good luck
  • The fat 4″ wide tires offer cushion for comfort and surface area for navigating soft terrain but require more power to get started and produce more drag so the range will be less than many other SDURO Haibikes
  • The motor activates with a lower cadence range than XDURO (Bosch powered Haibikes), I found that when switching down to lower gears the motor support dropped out significantly (even in the highest pedal assist mode), this was a bummer when approaching hills at high speed riding off-road, the rep said the power packet engages with an optimal RPM of ~80 vs. the Bosch motors between 95 to 105 RPM
  • No shift sensing or shift detection built into the drive system, this could lead to more mashing, banging and premature wear on the chain, cassette and derailleur
  • Large battery charger with cables that don’t come unplugged so it’s extra long even when the cables are tied up, it also weighs more than some other chargers I’ve seen
  • I found that the battery pack can rattle a bit at times and that you really need to make sure it’s clicked in before riding off, you could turn and remove the key but then push to hear the click of the battery


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3 months ago

I have this very same bike and its awesome. When I clean it I waterblast it no problem. I ride it through rivers ( in new zealand ) where the top of the tyres are completely under water and the bike just keeps powering on, it makes most e bikes look like they’re not that good, as it goes anywhere, I have videos of rivers crossings that will amuse if anybody wants to see them, just let me know.

3 months ago

Awesome! I’d love to check out your videos Brad, do you have a YouTube channel? Feel free to post a link here :)

brad norton
2 months ago

Check out this video of an electric bike crossing a river, it’s pretty insane!

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15 mins ago

Yes, they've had that posted for awhile. I was assuming another production run was forthcoming. I check their Facebook page from time to time as they seem to be better about posting info there.

4 hours ago

I bet someone is busy building it right now...

Frank D
4 hours ago

l do have a Bosch ebike. Someone told me that the o ring in the bottom bracket is weak. And not only the center drive motor does get sprayed, but the battery connection to. That's why l thought about a Strömer because the system is more integrated to the frame...

8 hours ago

Thanks @Nova Haibike , that's good to know! Upon further inspection though, I think I can just move the sensors over to my current brakes with some after market magnets and a new hole for the sensor from the ebike kit. I'll try that first before spending more cash. Happy it's not an actual button and switch but this magnetic thing. Will see how it goes.

8 hours ago

@John from Connecticut

Thank you, I actually did just that tried two bikes both were, however, Haibikes at my LBS (2 hours away) which were recommended and neither jumped out at me.

rich c
9 hours ago

I've put a fair number of miles on an original Sondors fat bike, over 1,600 miles, and I find them overrated. Don't get me wrong, I loved riding it, until I bought a Haibike XDURO F SX with bigger Schwalbe Super Moto tires. Now the fat bike is relegated to winter riding when salt is used. It's my winter beater bike. The Haibike is nimble, and can climb steep grades. Neither of those apply to a fat bike. I also get the speed I like with the Haibike. More than 20mph on a fat bike and it feels about like a run away train. If you like attention when you ride, that's the big factor for fat bikes. EVERYONE notices you. I've had people yell out what a cool bike I have while they drive down the street. I find riding in the snow over rated. About 10% of the time, in Central Illinois, it's perfect and a blast. The rest of the time the snow can be frozen and incredibly difficult to ride in. Then it can be too deep and slushy. I rode in one heavy wet snow, and had to stop every 3 minutes to clean my glasses. You have to buy some great wet gear riding in that kind of condition. It's also very easy to take a spill! It's a very narrow window of conditions that make riding in the snow a fun time. I've not ridden a full suspension fat bike, but it might be rough to tune the suspension. If you lower the tire pressure for better traction, you'll get bounce in the tires and the suspension. Might be fun, might be annoying. Now to your direct question. Based on my feelings about fat bikes, I would recommend a used Sondors. Price is right, hard to build one at that price, and it will scratch your itch. Pretty easy to find one for less than $700. Incredible owner support group on Facebook, and lots of aftermarket suppliers to upgrade if you like the ride. Don't like the ride, easy to resell at that price.

24 hours ago

Oh I see. I actually just meant the time spent commuting became a burden and not being able to swing by the grocery store on the way home without going out of my way, but I love being on a bike. It's so much better than being stuck in a car.

There were some days when I was only commuting by bike where I'd be super tired and then by the time I got home I lost all motivation to do anything but lay on the couch.

I think an e-bike would solve both of these problems because I could cover that distance in the same time (or less) while only exerting a fraction of the effort.

1 day ago

Good point about kids being big enough for a helmet. I probably won't actually need to use the bike as a kid carrier unless my wife goes back to work, which she isn't planning on doing for awhile.

My wife is more concerned about those rare times when I might need to get home quickly, or run to the doctors office. I'm not really worried about those kind of things, but I think this is what gets a lot of "car enthusiasts". They can easily think of some extreme scenario and then use it to justify whatever car they want. But then again.... I've never had kids, so I don't know what I don't know.

Thanks for the rec on the juiced bike, they look pretty good for the price. I don't get the point of a throttle though. I would probably only use the pedal assist.

1 day ago

It is a lot for what is a fiberglass tub with a wheel on one side and a pivot bracket on the other, but one of the few bicycle sidecars that's not a BMX sidehack or Xtracycle SideCar folding cargo deck, also there's an http://bad-bike.it/beach-vintage-fat/ and I think that's it.

But yeah OP could get a budget ebike and tow a child trailer bought used from Craigslist.

1 day ago

At the time of writing (2018), what's the best option for buying/making a fatbike? At the moment, I'm prepared to consider the following:

[*]Haibike FullFat (yes I want dual-sus). The only thing that annoys me is the lack of dual battery, which for a fatbike seems to be an absolute must.
[*]Luna Apex. I don't really like Luna or their attitude towards other bike manufacturers, but I wouldn't mind trying out their Apex bike. Except they don't ship internationally.
[*]Electrifying my Salsa Blackborow using a Bafang kit. I've never done anything like this but it could be fun... if only I knew where to start.

I'm open to other ideas. And yeah I'm in Europe just in case you want to suggest something.

1 day ago

I know just the thing...http://www.scandinaviansidebike.com/

1 day ago

Yup, but it comes loose after a while. It will then make a horrible wobbling noise. The part the stays click into isn’t fastened securely. Hopefully yours is a newer design.

The only idea I have is to put a rubber insert to prevent the wobble.

Steve Davies
10 months ago

I might be wrong but I don't think the Bosch has a power output bar on the display?
This is invaluable to me on my Sduro Full FatSix as I can see when I'm chewing up battery.

You say you're a stronger peddler which is possibly the problem. The more torque/pressure you put into the motors, the more they give you back.
I find my power output is loads less if I spin more/higher cadence than if I put more strength into it.
It also saves your knees.

On my "slow bike" I still use maximum pedal pressure to power through climbs but adjust to spinning more on the ebike.

The battery usage has massively reduced for me doing this.
I mostly use Eco to get a work out and only Std to be fast or lazy. Turbo is pointless on the Yamaha I feel as you get full power output from Std if you give it enough torque,
whereas Turbo uses maximum power output all the time, even if you don't need it.

One other observation since de-restricting the speed limiter - using this method

I find that as wind resistance increases you hit a top speed on a climb and it doesn't matter whether you are in Std(Tour) or Turbo mode, you won't get any faster,
but in Std mode the power output drops off at that speed limit so it's mostly your legs that keep it sustained. However Turbo mode just keeps outputting power without any increase in speed,
and it's only marginally easier on the legs. Hence a waste in battery.

As I say, the power output bar tells me everything I need to know to conserve battery.

2 years ago

@.R. the contact attached to the battery is loose (I checked it yesterday evening), and that's what they "fixed" the last time. Unfortunately it just lasted app. 2 weeks. I'll see what the dealer says later today. If they mean that they have to order me a new battery, it will take some time. However, the technician I spoke to said that they'll then give me a "demo"/spare battery in the mean time. For me the contact problem is due to a bad construction, and I'm curious if they have solved it on the new Big Bud Pro that is available (at least for viewing) at their web page. Spoke to the dealer and he said that the new BBP is probably available for orders in maybe half a year or more. He saw the bike at some exhibition not long ago, but just as a prototype... and he wasn't given the chance to look at like battery details etc.

Somewhat out of the topic, but it's a bit "unfortunate" with all the power cuts/losses and display/battery issues that people are expericening with their BH bikes. The main reason I bought the Big Bud Pro was because of the 2wd, otherwise I would go for the Haibike Sduro Full Fatsix. I just checked the Haibike's forum and it looks like their threads doesn't address so many problems as the emotion forum. Anyhow, comparing the quality between the emotion and the bosch/yamaha systems at least I have my opinion about quality. Ok, different setups (hub vs crank) etc, but with that said I really like the hub motors. It gives the bike a quick response to it, no matter the gear you're in.

Ann M.
2 years ago

Alright, folks, here it is! Court's review of the cushy full suspension FatSix Haibike. Powerhouse torque with this motor and a really cool rear suspension that you can dial in while you're riding. Very fast engagement of the Yamaha motor which can be handy climbing a hill from a stop.

https://electricbikereview.com/haibike/sduro-full-fatsix/ The Haibike SDURO Full FatSix is one of the only full suspension fat electric bikes I've seen, quality hardware including 20 speed Shimano Deore XT drivetrain, solid 2 year motor and battery warranty with 5 years on the frame. Powered by the Yamaha mid-drive ebike system with 500 watt motor, Zero Cadence pedal assist, 80 Newton meters of torque to move the tires through soft terrain. Quick release thru-axles front and rear makes transport and maintenance easier, side-slide battery allows the top tube to slope down for lower stand over height, the bike is available in three frame sizes for improved fit across body types. Lower pedal cadence activation ~80 RPM vs. 95 to 100 RPM on the XDURO Haibikes, no shift sensing, large clunky charger, the bike is basically already sold out and might be difficult to find.

Dmitri Nesteruk
4 months ago

Electric fatbikes really need DualBattery... oh wait, this is Yamaha. Oops.

עמיר סלע
5 months ago

Can you post a link where I can buy this bike?

Edelen Conner
7 months ago

White boy at v m a

7 months ago

Nice thief magnet. It's a 5k toy, nothing else. Good luck using this as a practical transportation tool. You could count the days before it gets stolen. Expensive ebikes like this will be worth their asking price only if companies are bothered to add anti-theft features into their bikes and cities implement safer ways to secure expensive ebikes on the streets.

james eagle
5 months ago

buntcher yeah but this is a mountain bike, not a commuter. Buy a cheap Walmart bike or a used one of your going to leave it outside.

Jenny J
10 months ago

WHEN IS BIKE SHOW IN dENVER, CO? Question for the producer. DO you just make movies on bicycles?

J Clar
11 months ago

lousy testing. How fast? instrumented.

J Cortez
11 months ago

how can someone mistake a 6'2 tall person for a 5'10 ??

Don'yea Lackey
1 year ago

they need to review the on way 26 inch 7 speed 500 watt bike best bike you can buy for 1000 it has everything!!!!!!!!!

Patrick Rhea
1 year ago

Another $5200 bike?...... A dime a dozen and so many to choose from at that price

Mike B
11 months ago

There aren't more than 3 or 4 full suspension fatbikes.

1 year ago

Anybody know What's it like for a trailer? Like a Bob Yak?

Chris Law
1 year ago

I got one of these with help from this review! Absolutely love this bike but had to change the color scheme to black / magenta.

1 year ago

i saw electric bike with 3000 watts is it good?

1 year ago


Christopher Skarning
1 year ago

monkeh88 I have a ebikes with 8000watt

Pam Candas
1 year ago

The Saris SuperClamp ( 2 or 4 bike) is a great rack. Light, sturdy, very quick and secure bike-on, bike-off, Made in USA.

1 year ago

So does the motor only assist when pedaling?

Mike B
11 months ago

Yes, all Haibikes are peddle assist only.

Bruno Benadi
1 year ago

send me one Matt an your number .....

12 months ago


Bruno Benadi
1 year ago

send me one

Bruno Benadi
1 year ago

the bike look great but i think the guy is cute an hot

Bruno Benadi
1 year ago

he hot will he come with the bike

1 year ago

Hey Bruno, are you talking about me? I have a girlfriend so no, unfortunately I don't come with the bike :)

Wilfredo Guido
1 year ago

how much? .

Ca Lonny
1 year ago

That's by far the nicest eBile I seen.. Rugged looking just like me.