Frequently Asked Questions:
How do I measure the bike size?
Bike size refers to the size of the rear tire, which is shown on the sidewall of the tire.
Can I use these FATWHEELS® with a multi-speed bicycle?
Yes, you can use the Adult FATWHEELS® with a multi-speed bicycle.
Can FATWHEELS® be mounted on a bike with "quick-release" hubs?
Only the Adult FATWHEELS® can. Additionally, the Small and Large FATWHEELS® kits require a solid rear axle with nuts for mounting. Your local bike shop can help install a solid axle if you do not have one.
Can FATWHEELS® be mounted on a Birdy folding bike?
FATWHEELS® will not fit a Birdy folding bike. The Birdy rear frame configuration is shaped differently than a conventional bike frame it will not allow our brackets to mount on the frame with the same bracket pattern.
How long does the rear axle need to be to mount FATWHEELS®?
Ideally, the axle should stick beyond the nuts at least 3/16 of an inch (equivalent to the thickness of three 0.25¢ coins) before FATWHEELS® can be mounted. Note: FATWHEELS® are made to mount to 3/8" diameter axles. They may be bored out to a larger diameter (such as 10mm or 14mm) if necessary.
What is the distance between the wheels (measured from the center lines)?
It is 21" for the Small FATWHEELS®, 30" for the Large FATWHEELS®, and 32" for the Adult FATWHEELS®.
Can Adult FATWHEELS® be mounted on tandem bicycles?
Yes, Adult FATWHEELS® can be mounted on a tandem bike as long as it has a standard rear frame configuration. The back portion of the frame must resemble a regular bike with a standard seat and chain stay. Confirm this with your bike shop before you order.
Are FATWHEELS® guaranteed?
Yes, satisfaction guaranteed! If they don't perform to your expectations or you are dissatisfied for any reason you may return them for a full refund minus the shipping charges.