| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Registration plate issues | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Horn not working |1.7.3a| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Offside Rear Footrest insecure |6.2.1a| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Brake hose damaged | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Nearside Position lamp switch insecure |1.1.4b| | 1 |
| Offside Position lamp switch insecure |1.1.4b| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Registration plate lamp issues | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride front split pin missing |6.2.1h| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake performance not tested |3.3| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Offside Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Central Front Inner Wheel corroded to the extent that the wheel could break up (5.2.2 (c) (ii)) | 1 |
| Central Rear Inner Wheel corroded to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (c) (ii)) | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Central Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Front Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Nearside Rear Direction indicator lens defective such that the emitted light is adversely affected |4.4.1 |b| |ii|| | 1 |
| Clutch lever shortened so it cannot be readily operated |6.2.7 |b|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Front Shock absorber has negligible damping effect front suspension has little to none damping (5.3.2 (b)) | 1 |
| Rear Motorcycle structure is deformed and structural rigidity is significantly reduced Rear frame cut and modified and not welded bolted together (6.1.1 (a) (i)) | 1 |
| Rear Motorcycle structure is fractured and structural rigidity is significantly reduced Rear mudguard and frame work removed (6.1.1 (a) (i)) | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp Rear indicators incorporated in the same lamps as the side and brake lights (4.4.3 (b)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 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 Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Nearside Rear All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |