| Most common failures | No# failures |
|---|
| Registration plate issues | 24 |
| Rear reflector on motorcycle missing |1.4.1| | 23 |
| Headlamp aim out of alignment | 23 |
| Registration plate lamp issues | 12 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| 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| | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Motorcycle structure joining/attachment plate or fastening insecure |6.1.1 |b| |i|| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Rear Footrest missing |6.2.12 |a|| | 1 |
| Exhaust silencer likely to become detached |8.1.1 |b| |ii|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on not working |1.1.3a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on not working |1.1.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies not working |1.3.1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Centre Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Brake component insecure rear brake rod adjuster nut |1.1.21 |c|| | 1 |
| Central Front Lower Exhaust is leaking and excessively noisey gasket blowing slightly |7.1.1b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Central Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear 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 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Centre Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen wrong side (4.1.2 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Rear Brake pedal has insufficient reserve travel Bled brake (1.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Stop lamp not working Front brake not operating rear stop lamp (4.3.1 (a) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Valve stem seriously damaged rubber cracked (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged rubber cracked (5.2.3 (j)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |