| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 49 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 32 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 25 |
| Steering headbearing has excessive free play |2.2.2| | 20 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 19 |
| Registration plate issues | 16 |
| Horn not working |1.7.3a| | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 13 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Rear reflector on motorcycle obscured |1.4.1| | 9 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 8 |
| Throttle operating incorrectly |6.2.1f| | 8 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Riders seat insecure |6.2.1a| | 6 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 6 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 5 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 5 |
| Registration plate lamp issues | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 4 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 4 |
| Direction indicator not working |1.5.1c| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Headlamp aim not tested |1.6| | 4 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 3 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 3 |
| Brake performance not tested |3.3| | 3 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Nearside Brake lever pivots excessively worn |3.1.3a| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Riders seat insecure |6.2.5 |a| |ii|| | 2 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Rear reflector on motorcycle obscured |1.4.2b| | 2 |
| Rear Front mudguard insecure |2.3.7| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Offside Rear Footrest insecure |6.2.1a| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Nearside Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear position lamp incorrect colour |1.1.2b| | 2 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Fuel system component insecure |7.2.1b| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 2 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Front Brake grabbing severely (1.2.1 (c)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |