| Most common failures | No# failures |
|---|
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 18 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 12 |
| Steering headbearing has excessive free play |2.2.2| | 12 |
| Headlamp aim out of alignment | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 10 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Front Steering headbearing has excessive free play |2.2.2| | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 6 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 6 |
| Direction indicators not working |1.5.1c| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Registration plate issues | 5 |
| Exhaust excessively deteriorated |7.1.1a| | 4 |
| Front Riders seat insecure |6.2.1a| | 4 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 4 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear reflector on motorcycle obscured |1.4.1| | 3 |
| Horn not working |1.7.3a| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Horn control defective |1.7.2a| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| 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| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Lower Steering headbearing has excessive free play |2.2.2| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear spring cracked |2.4.A1b|i|| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake lever cracked |3.1.2c| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Lower Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Brake lever mounting cracked |3.1.2c| | 1 |
| Nearside Indicator switch defective |1.5.4| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Lower Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Brake lever is inoperative |3.1.3c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Horn is not a constant note |1.7.3c| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Brake pipe excessively corroded | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Front wheel spindle loose |2.3.5a| | 1 |
| Vehicle identification number not legible |0.2 |b|| | 1 |
| Fuel cap ineffective Rubber Seal Missing |6.1.3 |b| |i|| | 1 |
| Throttle operating incorrectly Sticking |6.2.7 |a| |i|| | 1 |
| Nearside Forks excessively corroded |2.2.2 |d| |i|| | 1 |
| Offside Forks excessively corroded |2.2.2 |d| |i|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |