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A GuestI'll be honest... I'm a Mechanical Engineer and wrenched in a LBS for 6 years. I installed this on an Alfine 8 hub for my wife's bike and have had issues with the rotor mounting square to the hub. The rotor is not warped, but I think the way the mount clamps onto the spline is causing the split clamp to skew a little. This causes a wobble in the rotor. I set the wheel up in my truing stand with a dial indicator mounted to the upright to measure the wobble and it's pretty significant ( /- 0.01" at the adaptor, amplified at the edge of the rotor). I take the rotor off and it is still flat, not permanent warp. I swapped to a non-split type adaptor from another brand that uses the lock ring and the problem went away. I would look elsewhere...