| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Rear Footrest missing both (6.2.12 (a)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies when rear brake is applied |1.3.1a| | 1 |
| Fuel pipe leaking (6.1.3 (b) (i)) | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear suspension component cracked |2.4.A.1a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake hose damaged | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear Direction indicator light intensity significantly reduced both (4.4.3 (a)) | 1 |
| Rear Direction indicator not working both (4.4.1 (a) (ii)) | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Horn not working |1.7.3a| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Registration plate issues | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies Control |1.3.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised Headbearings |2.2.1b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |