| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 34 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 8 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Drive chain excessively loose |6.2.1d| | 7 |
| Drive chain worn to excess |6.2.1e| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 6 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Registration plate issues | 5 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Drive chain excessively loose |6.2.1d| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Horn not working |1.7.3a| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Rear Drive chain worn to excess |6.2.1e| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Horn control defective |1.7.2a| | 1 |
| Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Offside Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Stop lamp not working front aND REAR |4.3.1 |a| |ii|| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Registration plate lamp issues | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Centre Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Stop lamp not working rear brake (4.3.1 (a) (ii)) | 1 |
| Front Brake locking device insecure |3.2.A1e| | 1 |
| Front suspension spring worn and seriously weakened |2.3.2b| | 1 |
| An item not tested |Manual| | 1 |
| Front Brake cable badly frayed |3.2.A1b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake cable damaged |1.1.15 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Centre Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Suspension arm corroded and seriously weakened swinging arm |5.3.3 |b| |i|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Suspension component corroded and seriously weakened swing arm (5.3.3 (b) (i)) | 1 |
| Nearside Indicator switch defective |1.5.4| | 1 |
| Wheel more than one fixing missing Rear wheel spindle nut split pin |5.2.1 |a| |ii|| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Front Brake lining|s| contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Offside Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Inner Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Front Wheel spoke excessively bent |4.2.1b| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Nearside Front Brake back plate|s| insecure |3.2.A1j| | 1 |
| Brake back plate|s| insecure |3.2.A1j| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |