| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 2 |
| Nearside Handlebar deformed |2.1.1b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Rear Lower Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Registration plate issues | 1 |
| Front Horn sounds harsh or grating |1.7.3c| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Drive belt sprocket carrier worn to excess |6.2.1e| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Centre Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Centre Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Central Front Brake excessively binding (1.2.1 (f)) | 1 |
| Central Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |