| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 18 |
| Headlamp aim out of alignment | 13 |
| Drive chain excessively loose |6.2.1d| | 9 |
| Horn not working |1.7.3a| | 6 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Registration plate issues | 5 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Registration plate lamp issues | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Offside Inner Front Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Stop lamp insecure |1.3.3b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp remains on when the brake is released hand lever |1.3.1e| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Headlamp switch insecure |1.2.4| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Lower Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Front Brake fluid significantly below minimum mark |1.1.10 |d| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Headlamp reflector missing |4.1.1 |b| |ii|| | 1 |
| Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Handlebar excessively deformed |2.2.1 |c| |i|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded Pedal seized |3.2.A1h| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride engine bolt missing |6.2.1h| | 1 |
| Leg shield insecure and likely to impede the steering frame covers |2.1.2e| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Upper Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Central Front Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Central Rear Chain guard insecure (6.1.7 (i)) | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Front Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Front Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Suspension arm ball joint excessively worn swinging arm bushes (5.3.4 (a) (i)) | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Brake hose damaged | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Handlebar retaining device loose |2.2.1 |b| |i|| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Nearside Rear Indicator tell tale not operating correctly |1.5.2| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |