use your best eye
Join Date: Mar 2006
Location: Olympia, Washington
Bikes: '75 Bertin, '93 Parkpre Team 925, '04 Kona King Kikapu, '05 Bianchi Vigorelli
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Originally Posted by AJU
Do you have centerlock rotors?
I have the same play in my brakes (it makes it tough to tell whether your headset is preloaded enough). I have some concerns that the splines will wear in the disc and on the hub because of the play, but I'm not convinced. I considered using tephlon tape to make the fit tighter.
I would not be concerned with A LITTLE (1-2 mm) play between the rotor and hub. This is showing up by rocking the wheel back and forth with the brakes locked - in what riding circumstances would one do this rocking (other than a trackstand) ? When riding and using the brakes, the rotation is all in the same direction and thus the disc will bear against the splines in that same direction- that is why I would not be concerned with splines wearing.
By the way, I never use locking the brakes to test headset preload as any play in the brakes will confuse, as you have duly noted. What I do is lock the wheel between my feet and knees, standing at the front of the bike.
"I tell you, We are here on earth to fart around, and don't let anybody tell you any different." - Kurt Vonnegut jr.