sturmey archer hub "renovation"
iv been very interested in the benefits of running an internal gear hub(in my case a sturmey aw 3-speed), but the only thing that keeps me on single speed instead of that is the efficiency. with 1st and 3rd gear giving noticeable friction loss, i thought there has to be a better way.. i know its a bomb-proof system but its far from perfect.. so heres my idea. i think most of the friction comes from the planet pinions spinning on the pinion pins, and the large diameter bearing between the driver and the hub body. lets say we replace the bearing between the driver and hub body with a sealed cartridge bearing(like an integrated headset bearing) and we made the holes in the planet pinions much larger to accept small cartridge bearings. what do you think? i really want some feedback on this one
Last edited by Kragstips; 04-14-11 at 10:10 PM.