| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 14 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 12 |
| Steering headbearing has excessive free play |2.2.2| | 9 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 7 |
| Riders seat insecure |6.2.1a| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Registration plate issues | 6 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Rear reflector on motorcycle obscured |1.4.1| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Horn not working |1.7.3a| | 2 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Horn control defective |1.7.2a| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Lower Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Front Lower Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies Front brake light switch |1.3.1a| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Brake hose excessively deteriorated | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Offside Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Rear Direction indicator obscured |1.5.1a| | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Offside Rear Upper Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Front Headlamp damaged and function impaired |1.2.3a| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Nearside Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Centre Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 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 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Front Steering lock stop missing |2.1.3| | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Front Brake component leaking fluid |3.2.B4| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |