Yale Nice mechanical engineering class at has created a bicycle with a spokeless back wheel.

As you’ve probably noticed, only the back wheel is spokeless. This was done for several reasons: Manufacturing the rear wheel/rim was very expensive, so we only had one machined to see if it would work. We knew that if we could get it working for the rear wheel, it would definitely work for the front. But in the end, we ran out of time (class was only one semester long).

 

Spokeless Bicycle 01

Spokeless Bicycle 02

 

Spokeless Bicycle 03

Spokeless Bicycle 04

Spokeless Bicycle 05

Spokeless Bicycle 06

Spokeless Bicycle 07

Spokeless Bicycle 08

Source