liveforphysics wrote:I like everything about it, except the little needle sprague clutches.
If you're going to use them, you gotta make sure the surfaces of those areas they bite upon are exactly the surface roughness, hardness, alloy, and only ever see the exact recommended lube.
The wrong lube will have them skipping and destroyed in short time, and the wrong surfaces (or anything aluminum etc) will result in prompt failure.
So make sure if you're going to make a proto, you research the heck out of the surface requirements to get some decent life.
Thet is general idea, to make it from thin hardened steel and use tubes as inner and outher bearing shell at the same time.
It should be around 45% lighter then standard alu bb and two freewheels.