Joined: Feb 2012
Posts: 19,381
Likes: 5,528
From: Rochester, NY
Bikes: Stewart S&S coupled sport tourer, Stewart Sunday light, Stewart Commuting, Stewart Touring, Co Motion Tandem, Stewart 3-Spd, Stewart Track, Fuji Finest, Mongoose Tomac ATB, GT Bravado ATB, JCP Folder, Stewart 650B ATB
Place the mark on the axle/lock nut. It's the axle that's at play. Threaded, QR, axles are not easy to get exactly in the same location always. The tiny gaps between a rotor and the pads that a disk brake have makes this locating of the clamped axle more vital then with rim brakes. hence the through axle. Andy
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AndrewRStewart