| Most common failures | No# failures |
|---|
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Headlamp aim out of alignment | 12 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 12 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 12 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Horn not working |1.7.3a| | 6 |
| Registration plate issues | 6 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 5 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Fuel pipe leaking |7.2.1a| | 3 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Fuel hose leaking |7.2.1a| | 2 |
| 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 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Inner Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Centre Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Rear Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Fuel pipe union leaking |7.2.1a| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Lower Shock absorber insecurely attached nut |5.3.2 |a| |i|| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Front Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Front Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Fuel cap missing |7.2.2a| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Brake lever is inoperative |3.1.3c| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Centre Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Outer Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Fuel pipe leaking |7.2.1a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Front Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Brake drum|s| insecure |3.2.A1g| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Brake component is fractured |3.1.5| | 1 |
| Nearside Riders seat insecure |6.2.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |