| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 183 |
| Headlamp aim out of alignment | 120 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 76 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 62 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 54 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 45 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 40 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 38 |
| Registration plate issues | 38 |
| Horn not working |1.7.3a| | 36 |
| Steering headbearing has excessive free play |2.2.2| | 33 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 29 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 28 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 27 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 27 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 26 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 24 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 24 |
| Rear reflector on motorcycle missing |1.4.1| | 21 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 21 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 18 |
| Front suspension has inadequate damping effect. |2.3.6c| | 17 |
| Stop lamp remains on when the brake is released |1.3.1e| | 16 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 15 |
| Front Brake excessively binding (1.2.1 (f)) | 15 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 14 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 14 |
| Riders seat insecure |6.2.1a| | 13 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 12 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 12 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 12 |
| Headlamp aim not tested |1.6| | 12 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 12 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 11 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 11 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 10 |
| Fuel cap sealing washer missing |7.2.2c| | 10 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 10 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 9 |
| Indicator switch defective |1.5.4| | 9 |
| Direction indicators not working |1.5.1c| | 9 |
| Registration plate lamp issues | 9 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 9 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 8 |
| Horn not working (7.7 (a) (ii)) | 8 |
| Stop lamp remains on when the brakes are released | 7 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 7 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 7 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 7 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 7 |
| Headlamp aim not tested (4.1.2 (b)) | 7 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Nearside Steering lock stop ineffective |2.1.3| | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Headlamp insecure |1.2.3b| | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 5 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front Brake excessively binding |1.2.1 |f|| | 5 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 5 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Offside Steering lock stop ineffective |2.1.3| | 5 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 5 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 5 |
| Horn control defective |1.7.2a| | 5 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 5 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 5 |
| Nearside Direction indicators not working |1.5.1c| | 5 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Nearside Direction indicator not working |1.5.1c| | 4 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Exhaust excessively deteriorated |7.1.1a| | 4 |
| Front Steering headbearing has excessive free play |2.2.2| | 4 |
| Headlamp switch faulty |1.2.4| | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Direction indicators not working |1.5.1c| | 4 |
| Riders seat insecure (6.2.5 (a) (ii)) | 4 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 4 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |