Questions tagged [fatbike]

From wikipedia: A fatbike is a bicycle with over-sized tires, typically 3.7" or larger and rims wider than 44mm, that are designed for riding on soft unstable terrain such as snow and sand. These bikes are built around frames with large forks and stays to accommodate the wide rims required to fit these tires.

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3 answers
91 views

Surly Rabbit Hole Wheel Build (Symmetrical Fat Bike Rim build) - Spoke Calculation help?

I have a set of 26" Surly Rabbit Hole rims, which I need to build into a wheelset for a fat bike. The Rabbit hole rims are unique in that the spoke holes are not in the center of the rim. The ...
4 votes
2 answers
421 views

How do I determine a suitable handlebar width on a fatbike?

Fatbike owners seem to be fond of using lavishly wide handlebars. They also don't just go from 640mm or 660mm to 680mm or 700mm, but often to 720mm or 740mm. I'm assuming their shoulders couldn't be ...
7 votes
3 answers
2k views

Why are folding fat-tire bikes all-electric?

There's an area in my state that has a good number of trails for mt biking, snow biking on large (4-in tire) fat bikes. I rented one at one time and it was fun in the snow. Many trails there are ...
3 votes
1 answer
117 views

Fork swap possible or not worth it? Fat bike tapered

I got a Fat Bike With a FAT Fork that is tapered. For summer riding, I swap out to a 29+ 2.2” Wheelset. However, That Fat fork just feels like an anchor and I’d love to be able to swap it out too ...
2 votes
2 answers
268 views

What is this bolt called?

It's part of my front axle and I need another one like this to keep the wheel on. Links to where I could buy one would be appreciated too. The bike is a fatbike with suspension. Bolt threads into ...
1 vote
3 answers
7k views

Can I fit a 26x3.5 tire on a 26x4.0 rim?

i have a sondors bike that comes with a 4.0 fat tire. i am tring to find a street tire for my fat boy i only found one and its 3.5 not 4.0 STREET TIRE
15 votes
7 answers
65k views

What is the benefit of fat tires on pavement?

This year in my area, I've seen a lot of people using fat tires on paved bike paths and roads, when there was no fat bikes before. I also see a lot of these bikes in grocery stores. It is summer, so ...
0 votes
1 answer
126 views

Change in setup to stop handlebars jack knifing

I picked up a new fat bike recently took it on the first ride, just some light trails felt good however during corners the bars feel like the want to collapse in towards the way I'm turning. Not sure ...
1 vote
1 answer
2k views

Effect of raising handlebars on a fat bike

I am currently demoing a 2019 Cannondale Fat Caad 2. Never owned a fat bike before. This bike is relatively light and they are on clearance right now at a local bike shop that I ride with and do ...
2 votes
1 answer
235 views

Is the use of wide fatbike tires problematic with 100mm BSA bottom brackets?

Fatbike frames typically come with 100mm or 120mm BSA BBs. Does the 120mm BB help anything, though? For example, if I have a 100mm bottom bracket and a 5" tire on a 100mm rim, and I switch to the ...
1 vote
4 answers
2k views

Fat Tire Bike versus Road Bike [closed]

If I ride 20 miles on my Road Bike, what is that equivalent to on a Fat Tire Bike? More specifically (and technically), I would like to know how far I would end up riding on a Fat Tire Bike using the ...
3 votes
1 answer
1k views

How do I keep wrinkles out of tubeless rim tape?

I just set up my Surly My Other Brother Daryl rims to run tubeless. They are 80mm rims and this is my first time setting up tubeless. I used Surly's official tubeless kit for those rims. I believe ...
3 votes
2 answers
487 views

Are plus forks a suitable alternative to fatbike-specific forks?

I recently got a 27.5+ Fox fork only to discover that the distance between the legs of the fork is 4.3". This made me think that one could fit a 4" tire (obviously, using a 110 mm front hub instead of ...
1 vote
2 answers
606 views

Surly Pugsley bottom bracket replacement

Does the bottom bracket on Surly Pugsley need to be replaced with a like for like surly part (100mm external bottom bracket) or will any 100mm external bottom bracket be compatible..? The surly part ...
1 vote
1 answer
906 views

Gearing change on Mongoose Malus

I recently purchased a Mongoose Malus, I would like to change out the front gear so I have a true granny gear (ie really low gear) and am not concerned with the top end speed. Where can I purchase ...
3 votes
1 answer
769 views

Can BSA 68/73 bottom bracket be used in place of fat bike BSA 100 mm

I have a fat bike with SRAM GXP 100 mm bottom bracket. Except for the length of the plastic sleeve that connects two cups, it looks exactly like BSA 68/73 mm bottom brackets used on non-fat MTBs. I ...
1 vote
1 answer
1k views

Retrofitting disc brakes on 2000 Specialized Stumpjumper FSR XC?

I just got an old 2000 Specialized Stumpjumper FSR XC that still uses rim brakes. I also have this 160mm rotor and this mechanical disc brake caliper. Since none of my wheels have 6 bolt holes to ...
4 votes
1 answer
145 views

Luggage carrier for fatbike [closed]

I need a bicycle luggage carrier (rack) for my Scott Big Ed fat bike, but it is not easy to find one that fits. And it looks like it is not possible to add front rack since the bike has front ...
2 votes
3 answers
533 views

How do I achieve a lower gear on a Norco Bigfoot with a 9 speed cassette?

I have 2015 Norco Bigfoot fat bike which has a Shimano HG-20 11-34T 9 sp cassette a with a Shimano Alivio RDM 4000 SGS 9 sp Rear Derailleur and a Shimano EZ-Fire EF 51 9 sp Rear Shifter. As I live ...
3 votes
3 answers
115 views

Hand strain when off road

I tried fat biking this week, I've done hardly any off road or MTB cycling before and was very nervous. I found keeping my hands over the brakes in case I had to stop suddenly strained my hands ...
5 votes
1 answer
7k views

How is fat bike traction on icy roads compared to a mountain bike?

From anything between black ice to 4 inches of snow (paved roads only, no offroad), how will fat bike tires compare to mountain bike tires traction-wise? Please note since the bike has to be ridden ...
1 vote
1 answer
117 views

Installing fat bike tires on a BSO for winter riding(condition of averaging -23 C for 2*17km). Is it doable, safe?

As for my other question Winter riding: Is it safe to ride on a BSO/cheap bike at temperatures below -15°C on icy or damp roads? I've got a lot of suggestions of getting studded tires for winter ...
1 vote
2 answers
3k views

What is the widest tire for the 27.5+ width rims?

Assuming that there's a line between fat wheels and plus sized wheels (which I am not sure of), then, where would this line be? I read that a 3.5" tire is considered a "plus" one. Like http://...
5 votes
2 answers
9k views

Are CO2 cartridges feasable for use on fat bike tires?

Are CO2 or other portable cartridge style devices feasible for use on fat bikes with tires 26x4.5" or greater? I know there are large 20g or 40g cylinders available? If so, what sizes of cartridges ...
3 votes
2 answers
2k views

Bike options for winter commuting in the mountains

I live in the mountains of Vermont and bike 3 seasons a year on my trusty cyclocross bike. This year, I'd like to commute year round, through winter. My commute involves some steep, 10-18% climbs on ...
0 votes
2 answers
1k views

Fat tire vs regular mountain bike in mud

Looking to see which one is better suited for me. Mid 50's outta shape and heavy and need the exercise. Will be checking cows and fences. This is mostly flat pasture and hay meadows with lots of ...
6 votes
1 answer
4k views

What kind of portable pump should I carry when riding on a fat bike?

However, I just got a fat bike with 4.5in tires. I know that my portable hand pump takes a long time to pump mountain bike tires due to it being optimized for high pressure / low volume. What type of ...
5 votes
2 answers
482 views

Fatbike tire footprints?

I am curious if there are any empirical experiments, or theoretical computational results, comparing the "footprint" size of the various fatbike/29er/mountain bike tires? There are lots of claims ...
1 vote
0 answers
2k views

What are the rim size options for fat bikes?

I recently purchased a fat bike through the internet, and found to my surprise, that it had 3" tires, and not 4" tires. What are the common fat bike rim sizes, and tire sizes? I'm primarily ...
1 vote
0 answers
973 views

Rigid fork replacement for Rock Shox Bluto fat bike suspension fork? [closed]

I'm considering the purchase of a fat bike with a Rock Shox Bluto Fork. This fork takes a 150x50mm Maxle Light and 150mm hub. However, since winter is coming and I'll likely be riding in slop and ...
1 vote
3 answers
1k views

Would "fat" tires help me learn skinnies/log rides?

I'm relatively new to mountain biking, and am considering purchasing a new, less expensive bike to help me learn to ride wooden obstacles (skinnies, curved bridges, etc.) without fear of damaging my "...
3 votes
3 answers
3k views

Fat Tyre Punctures

I ride a Fat Bike which is fitted with 26x4.6" tyres. I am worried about puncturing on trails in the South African bush. What can be done to mitigate this risk of puncture as tire liners and ...