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MS-1024 · SYNTHETIC DEMO RECORD Professional recommended

Chain skips under hard pedaling

Specialized Hybrid Bicycle · Sirrus X 2.0 · Bicycles

chain skipdrivetrainload
Qualified service recommended

This case is available for history and evidence only. MendSignal does not provide procedural instructions for mains electricity, gas, high-voltage, critical vehicle systems, structural repair, or hazardous materials.

CHRONOLOGICAL CASE HISTORY

Diagnostic timeline

1 recorded tests
  1. Problem reportedChain skips under hard pedaling

    Symptoms: chain skip, drivetrain, load

  2. Diagnostic test 1Stop riding under load and inspect chain wear with a gauge.

    Start with the least invasive test that separates common causes.

    Expected The observation should narrow the next safe action.
    Observed by human The chain measures beyond the replacement threshold.Synthetic demo observation.
  3. Repair attemptedA bicycle technician replaced the chain and inspected the cassette.

    Parts: chain · Estimated $45 · advanced

  4. OutcomeProfessional repair required

    A bicycle technician replaced the chain and inspected the cassette.

    $45 40 minutes