Canyon Chainstay Rub

Gazzaputt Posts: 3,227
edited May 2011 in Workshop
I have noticed a rub mark on the inside of the non-drive side of the chainstay up towards the seatpost tube.

I'm running Mavic R-Sys and these have no play with in them at all. Tyres are 24mm Conti Force which leave about 4mm gap between the tyre and the chainstay.

I've put a patch there now but bit worried there is enough flex to allow this.

Anyone else had this on their Canyon?