MOT failure · RFR #40573
A transmission belt, chain, sprocket or pulley excessively loose or worn
Total
324
Models
20
Models most at risk.
Ranked by rate, not raw volume. A Fiesta shows every failure a lot because there are a lot of Fiestas. Rate = share of that model's own MOTs.
Failure match · your reg
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- 01 Lexmoto Lxr 125 SY 125 10 1.12%
- 02 Yamaha Yzf R125 1.08%
- 03 Honda Glr 0.88%
- 04 Honda Cbf 125 M M 0.87%
- 05 Honda Cbf 125 M B 0.81%
- 06 Yamaha Ybr 125 0.80%
- 07 Yamaha Yzf R125 Abs 0.77%
- 08 Yamaha Ybr 0.68%
- 09 Honda Cbf 0.57%
- 10 Yamaha YS 125 0.54%
- 11 Yamaha Xj600 0.47%
- 12 Honda Z 125 MA K 0.37%
- 13 Suzuki Gsx750 0.32%
- 14 Honda NC 0.26%
- 15 Royal Enfield Himalayan 0.24%
- 16 Yamaha Tdm900 0.23%
- 17 Honda CB 650 RA K 0.19%
- 18 Yamaha Tracer 700 MT 07 Tracer 0.18%
- 19 Ducati Multistrada 0.14%
- 20 Suzuki Gsxs 0.14%
Cost orientation
Hard to predict in isolation — depends what's actually worn.
This defect doesn't map to a clean retail-part swap; ranges vary too widely without seeing the car. Use the estimator to bracket the all-in cost across the items most likely to surface alongside it.
Frequently asked.
- Why does a transmission belt, chain, sprocket or… fail an MOT?
- A transmission belt, chain, sprocket or pulley excessively loose or worn. Most commonly flagged on the Lexmoto Lxr 125 SY 125 10. UK MOT standards require this item to meet minimum safety thresholds — when it falls short, the tester logs it as a Major or Dangerous defect and the car fails outright.
- How much does it cost to fix a transmission belt, chain, sprocket or…?
- Costs vary depending on the vehicle, region, and severity. Use our MOT cost estimator for typical UK garage rates across the most common failure items.
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