| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 30 |
| Registration plate issues | 11 |
| Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Registration plate lamp issues | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Horn not working |1.7.3a| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Drive belt excessively loose. |6.2.1d| | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Stop lamp not working replaced defective switch (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Central Rear Lower Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp at least one does not illuminate on dipped beam bulb blown 3b 12v 55w |1.2.2a|i|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Front Direction indicator not working LED indicator not working (4.4.1 (a) (ii)) | 1 |
| Central Rear Brake indicates excessive fluctuation of brake effort Rear disk rotor is warped causing major fluctuations in braking effort |1.2.1 |e|| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear Lower Suspension component pin or bush excessively worn Bush worn ! (5.3.4 (a) (i)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake control |1.3.1a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Horn sound not in accordance with requirements HARSH SOUNDS LIKE A DUCK |7.7 |c|| | 1 |
| Front Handlebar deformed to the extent that steering is affected |2.2.1 |c| |ii|| | 1 |
| Central Rear Footrest missing (6.2.12 (a)) | 1 |
| Central Rear Stop lamp not working rear brake pedal operation is not working stop lamp (4.3.1 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls stop light switch adjusted to suit (4.3.2 (a) (iii)) | 1 |
| Front Stop lamp not working Front brake light not working |4.3.1 |a| |ii|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Offside Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |