| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Brake pedal is inoperative |3.1.3c| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Stop lamp does not illuminate immediately a brake applies brake control 2 |footbrake| |1.3.1a| | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake back plate|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Brake hose damaged | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Upper Brake pipe union leaking fluid |3.2.B4| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling alignment bar hits left hand side of front wheel |2.5.1| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |