| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 6 |
| Horn not working |1.7.3a| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Horn emits 2 or more alternating tones |1.7.3b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Brake back plate|s| insecure |3.2.A1j| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake lever excessively damaged |3.2.A1c| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Rear Stop lamp flickers when tapped lightly by hand |1.3.1d| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |