| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Registration plate issues | 8 |
| Headlamp aim out of alignment | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Rear Footrest missing |6.2.1a| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Horn not working |1.7.3a| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Front Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected |5.2.2 |c| |ii|| | 1 |
| Front Brake cylinder severely corroded |3.2.B1b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Lower Suspension arm pin or bush excessively worn linkage (5.3.4 (a) (i)) | 1 |
| Rear Brake clevis joint excessively worn (1.1.15 (b)) | 1 |
| Headlamp light source and lamp not compatible kick up beam incorrect (4.1.4 (c)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Rear Wheel fractured (5.2.2 (a)) | 1 |
| 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 |
| Fuel pipe union leaking |7.2.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake hose which buldges |3.2.B4| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Wheel fixing missing |single fixing| split pin |5.2.1 |a| |ii|| | 1 |
| Rear Wheel fixing missing |single fixing| split pin |5.2.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Direction indicator flashing more than 120 times per minute all |1.5.1c| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Lower Rear suspension bush has excessive free play linkage |2.4.A2a|i|| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Stop lamp not working Not Working From Rear Control (4.3.1 (a) (ii)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure Bottom Shock Mount Nut Missing (5.3.3 (a) (i)) | 1 |
| Rear Suspension arm ball joint excessively worn Bottom Shock Mount (5.3.4 (a) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Footrest insecure no split pin |6.2.12 |a|| | 1 |
| Offside Rear Wheel fixing missing |single fixing| no split pin |5.2.1 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Headlamp aim beam image too far to the left |1.6.4| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front position lamp does not illuminate immediately when switched on side light |1.1.3a| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Headlamp switch insecure |1.2.4| | 1 |
| Wheel alignment incorrect which adversely affects the steering steering mis-aligned |2.5.1| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Direction indicators not working front and rear |1.5.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |