• All seemed good but I recently noticed a clunk when braking. Assumed headset loose, no. Checked calliper tightness, ok.

    Yesterday noticed when braking the whole rim jumps to the left (towards the disc) by 4 or 5 mm

    Quick release not tight. Bearings shot? Does rim rock on the hub?

  • QR tight enough and no movement. Bearings are new in the dynamo so <6 months old. I’ll check the rim. It didn’t move after I’d built it.
    Thanks.

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