| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 15 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 11 |
| Headlamp aim out of alignment | 10 |
| Horn not working |1.7.3a| | 10 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Registration plate issues | 6 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Front Horn not working |1.7.3a| | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Fuel hose leaking |7.2.1a| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front suspension assembly component loose |2.3.1| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Rear Gradient brake test indicates a binding brake |3.3.D1c| | 1 |
| Rear Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Offside Front Upper Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Front suspension assembly component loose |2.3.1| | 1 |
| Offside Front suspension assembly component loose |2.3.1| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Nearside Front Front suspension assembly component loose 2nd shock securing nut missing |2.3.1| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Upper Brake lever attachment screws missing |3.1.2b| | 1 |
| Offside Rear Lower Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Front Lower Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Offside Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Front Steering damper ineffective |2.1.4 |d| |i|| | 1 |
| Rear Brake drum|s| insecure |3.2.A1g| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Rear brake pedal securing bolt |6.2.1h| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear Gradient brake test indicates a severely grabbing brake |3.3.D1d| | 1 |
| Steering linkage has excessive free play |2.2.2| | 1 |
| Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies not working |1.3.1a| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Centre Upper Fuel cap sealing washer missing |7.2.2c| | 1 |
| Nearside Lower Front suspension assembly component loose securing nut missing from outer shock absorber |2.3.1| | 1 |
| Nearside Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Steering lock stop loose |2.1.3| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Gradient brake test indicates a severely juddering brake |3.3.D1d| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Front Brake back plate|s| insecure |3.2.A1j| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Rear wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Front suspension spring worn and seriously weakened |2.3.2b| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Headlamp missing |1.2.3a| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Brake component damaged and seriously reduced in strength back plate ferrule location |3.2.A1| | 1 |
| Front Brake locking device missing brake pivot circlip |3.2.A1e| | 1 |
| Rear Brake locking device missing brake pedal circlip |3.2.A1e| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Front Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Offside Front Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |