| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Headlamp insecure |1.2.3b| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Registration plate issues | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Suspension component modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Rear Suspension component modified so the suspension is inoperative |5.3.3 |c| |ii|| | 1 |
| Nearside Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake lining|s| contaminated by oil or grease |3.2.A1k| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Nearside Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Centre Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Front Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |