I have a Sturmey Archer S3C 3-speed internal hub with an integrated coaster brake sitting around. I fancy the idea of building a 700c wheel out of it. Point is to make a clean-looking bike with 3 speeds and sufficient braking.
Somewhere along the line, I heard that coaster brakes are limited to smaller wheels. Any truth to this...is there a wheel size limit?

The hub came off a 26" wheel.