Originally Posted by
biketrouble
....ircclean's story about the sprocket is interesting. Having had the drivetrain apart on mine, ISTM the spline on the Alfine might be designed such that the sprocket breaks before the hub internals do in the event of too much torque....
Never attribute forethought when stupidity will do. In this case, Gates messed up on a 100 year old system. The three tange sprocket has been standard on Sturmey Archer, SACHS, Bendix, Shimano and many other manufacturers. The mistake was going cheap and using all aluminum, they've fixed it but to screw exisiting customers isn't right.