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MS-1023 · SYNTHETIC DEMO RECORD Moderate risk

Rear brake rubs once per wheel rotation

Trek Hybrid Bicycle · FX 2 Disc · Bicycles

brake rubdisc rotorrear wheel

CHRONOLOGICAL CASE HISTORY

Diagnostic timeline

1 recorded tests
  1. Problem reportedRear brake rubs once per wheel rotation

    Symptoms: brake rub, disc rotor, rear wheel

  2. Diagnostic test 1Spin the rear wheel slowly and observe rotor clearance.

    Start with the least invasive test that separates common causes.

    Expected The observation should narrow the next safe action.
    Observed by human The rotor approaches the outer pad at one point each rotation.Synthetic demo observation.
  3. Repair attemptedA bicycle technician trued the rotor and verified braking.

    Parts: none · Estimated $25 · moderate

  4. OutcomeProfessional repair required

    A bicycle technician trued the rotor and verified braking.

    $25 30 minutes