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As the title suggests, under very heavy breaking with super sticky tyres the rear brake pulls the wheel slightly out of line in the (unique, horizontal) dropout. The wheel doesn't come out of the dropout but the brake disk does ping annoyingly on the caliper until the wheel is realigned. The 10mm QR is prolly as can be safely tightened.
Anyone else had a similar issue or have ideas for a solution?
sounds like you need a chaintug, I've never managed to use a sliding/horizontal dropout without the wheel moving under heavy grunt or with brake torque even with a bolt axle if I don't use a tug.
Tug won't help here. This is about the wheel moving BACKWARDS under braking.
I'd recommend a Shimano QR. They get the highest tension I think.
Bolt in axle will help. Same on my old Chameleon when I tried a qr on the rear. 10mm bolt in sorted it.
Is your axle shifting in or out and drive or non-drive side? On mine a chain tug wouldn't have helped as it was dragging the axle out, not in.
EDIT - as stated by Brant...
ahhhh, that'll explain why all the on-ones I've had have been blinkin awful for adjusting the rear brakes and I thought it was just to be a pain in the bum 😆
Brant> I already use a 10mm transition qr axel.
I have a fireeye 10mm on another bike I could use, might this be better?
is it the shape of the shimano cam that makes it so good?