Try our new info resource - "Aladdin's Cave" (Main menu)Just added a separate link to Ash's Dropbox thread (shortcut)
A bit strange, and certainly for a road bike, on which you'd expect to have a cush.Racing I could see the potential to modify as some would use no or very very litte cush effect to give direct response to input. But it would normally be at the expense of chain and sprocket life which they'd probably be willing to accept.There's one in the primary drive to catch engine vibrations and prevent onward travel into further transmission. Then this one that allows the next stage to run vibrations separate from being directly constrained by the tire on the road. Technically it'll work as the peripheral weld should easily take the torque, but at the expense of component lifing and added harshness to the rider.