| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Registration plate issues | 12 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Horn not working |1.7.3a| | 6 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Nearside Front suspension assembly component loose |2.3.1| | 2 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Upper Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front Position lamp switch faulty |1.1.4a| | 1 |
| Position lamp switch faulty In dip position both high and low lights on |1.1.4a| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Front Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Brake master cylinder leaking sight glass leaking |1.1.10 |b| |ii|| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake locking device insecure |3.2.A1e| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Rear Upper Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Rear wheel has a missing wheel stud|s| |4.2.3a| | 1 |
| Front Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Centre 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 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Headlamp main beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Offside Front suspension assembly component loose |2.3.1| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |