| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Registration plate issues | 3 |
| Horn not working |1.7.3a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| 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| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Indicator tell tale not functioning |1.5.2| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Brake drum|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Centre Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Stop lamp not working using foot brake |4.3.1 |a| |ii|| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Horn control not functioning. (1.7.2b) | 1 |
| Rear Brake cable badly frayed |3.2.A1b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Brake cylinder leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Centre Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |