| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Registration plate issues | 2 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Fuel pipe leaking (6.1.3 (b) (i)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Upper Handlebar mounting clamp bolt loose |2.1.1a| | 1 |