I have a 2013 Cube Litening with a worn rear drop out on the drive side. Its a carbon frame with what appears to be a aluminium insert, and its this insert that is worn. Does anyone have experience of this type of issue and is it possible to have the worn insert removed and replaced? Because its worn the rear wheel doesn't fit correctley and the axel moves forward by about 5mm on the drive side meaning the tyre almost rubs the non drive side stay near the bottom bracket. I imagine that if left untreated the tyre will eventually rub on the frame!