He uses a Shimano Nexus hub gear unit, which I believe is an epicyclic gear. Normally the unit is built into the rear hub but Alan built it into the intermediate hub, above the crank.
He uses a Shimano Nexus hub gear unit, which I believe is an epicyclic gear. Normally the unit is built into the rear hub but Alan built it into the intermediate hub, above the crank.
No, I think he says it’s a chain, fully enclosed in an oil bath. A shaft would add even more cost to an expensive project, not to mention weight, and even on a downhill bike you would want to minimise power loss. Ok, this is GS forum but sometimes we just have to suck it up!