Small Fatwheels Adaptive Training Wheels

Small FATWHEELS® training wheels are designed to provide maximum balance support for riders of all types and abilities. This size is specially made for bikes between 16" and 20" and riders weighing up to 150 pounds.

All Fatwheels feature 12.5" nylon wheels mounted on custom 3/8" axle shafts with heavy-duty bearings. Brackets are manufactured from heavy-gauge steel, coated with a black powdered finish, and proudly made in the USA.

FATWHEELS® are specifically designed to provide support and stability to the rider. FATWHEELS® includes (2) 24TPI Axle Extenders and (2) 26TPI Axle Extenders. For single-speed or coaster-brake bicycles, you will want to use the 24TPI Extenders. For multi-speed or derailleur bicycles, use the 26TPI Extenders.

PLEASE NOTE: The Small FATWHEELS® will not work on bikes with quick release or quick disconnect rear wheels, rear wheel suspension or on folding bikes. This size is also not Fat Tire compatible. All Fatwheels training wheels are NOT recommend for use with electric bikes or tandems and tag-a-longs. For more information see the sizing chart below.

SIZING INFORMATION FOR STANDARD BIKES:

Bike size is determined by tire height. The size is printed on the sidewall of the rear tire. The first number in the sequence is the tire's height.

How do I measure the bike size?

As stated above, bike size is determined by tire height. Please note the photo above. You can see the size printed along the sidewall of the rear tire. The first number in the sequence is the height of the tire - this tire fits a 29" bike.

Once you determine your bike's size, use the chart above or the Specs tab to choose the appropriate kit.

What are the best bikes for FATWHEELS?

There are four basic features that work best for compatibility with FATWHEELS:

• "A" frame bike with a straight chain stay
• Solid rear axle
• Rear axle thread extends at least 3/16" past the nut
• Rear axle thread 3/8" X 24 or 26 tpi (threads per inch)

How do I measure if I have a Fat Tire bike?

Can I use these FATWHEELS® with a multi-speed bicycle?
Yes, you can use the Small (16"-20") or Large (24"-29") FATWHEELS® with a multi-speed bicycle. You will want to use the 26TPI axle extenders that are provided with your FATWHEELS®.
 
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 chainstay. Confirm this with your bike shop before you order.