Best wheel size for a custom frame?

cloakedvillain

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I like those 20 inch fat tires some moto styled e bikes have. Look up minivelos, basically an adult sized road bike with itty bitty 20 inch tires.
 
I like those 20 inch fat tires some moto styled e bikes have. Look up minivelos, basically an adult sized road bike with itty bitty 20 inch tires.
Best often is an opinionated statement. Just realize the smaller the wheels the greater the wheel rpm will need to be for the same speed using a larger wheel.
 
I personally like 24 inch wheels. They fit well in a frame built for 26" wheels and they have lotsofroom, plus alot of the guys with whizzers prefer to swap to a 24" wheel
 
I wish Skyway would build 26” mag Tuff wheels. The 20 “ ones were bullet proof for old school bmx bikes back in the d
Made in USA Tuff Wheels were made outta nylon, yeah, they sure could bend/flex and not crack or Break
Off a jump I would land still in a cross up and that wheel could take it but that would fold a normal wheel
Rooster tail trash can's all the time too :LOL:
 
I like the idea of a full suspension build on a custom frame using 20x2.5 inch bmx tires. Reasons why: the larger the wheel, the less rpm is needed to move it at the same speed, which is useful if you have a gear increase but unless you're running a hit and miss engine you need a gear reduction.

Lets say the actual diameter of a 20x2.5" tire is 22", on a two stroke kit a 24 tooth sprocket will hypothetically get you to 36 mph at 6k rpm, where as a 26x2.0" tire would need a 32 tooth sprocket to reach a similar speed at the same rpm. Why is this important? Lets say this build is using an internally geared hub in the rear wheel, these can only take so much torque without risking damage, thus a smaller reduction then becomes advantageous.

Even a more traditional build can find a smaller wheel advantageous, maybe a disc brake adapter is used, supposedly a 36 is the biggest sprocket that can be comfortably fit behind a 203mm brake rotor. A 36 tooth sprocket on our fat bmx wheel will give us a higher reduction, thus more torque at the same power, thus steeper hills and heavier riders can be accommodated.
 
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