Suffering from brake rotor rub? Unable to properly align the caliper to the rotor? The problem may be that the brake mounts are not flat or parallel. To remedy this the mounts need to be faced. This is something that should be done at the factory, but manufacturers love to cut corners, even on expensive bikes. Enter Park Tool's DT-5.2 Disc Brake Mount Facing tool, yours for only US$450! Better yet, go see Brian at Forks Bicycle Shop in the Springmount Industrial Park. He's got a brand new DT-5.2 and is happy to use it. Sweet silence!