Got an irritating problem. My back wheel under heavy torque keeps slipping out of the droputs. I have checked axle length and all that stuff and am using Ultegra QRs so should be ok. I think the problem lies in the horizontal droputs which are chromed and don't offer and form of resisitance. Anyone have this problem?
I have read a bit on the web and there seems to be a few answers.
Star washers between axle and frame, or tugnuts (whatever they are?)
Another idea was to sandpaper the dropouts a bit to roughen them up.
Anyone tried any of these? Or could recommend me some ultra strong QRs!
Get rid of teh Shimano and replace it with Campagnolo and your worries will disappear.