| Most common failures | No# failures |
|---|
| Exhaust is leaking and excessively noisey |7.1.1b| | 13 |
| Headlamp aim out of alignment | 12 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 11 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Registration plate issues | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Horn not working |1.7.3a| | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Riders seat insecure |6.2.1a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front Front mudguard insecure |2.3.7| | 2 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| 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| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Nearside Direction indicators not working |1.5.1c| | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Headlamp damaged and function impaired |1.2.3a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Upper Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Centre Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Lower Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Upper Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Upper Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Inner Horn not working |1.7.3a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Wheel fractured significantly reducing the original strength |4.2.1a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Rear Rear position lamp incorrect colour |1.1.2b| | 1 |
| Nearside Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Offside Front Brake lever cracked |3.1.2c| | 1 |
| Nearside Front Brake lever insecure |3.1.2a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Brake hose damaged | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases Leaking at cylinder head (6.1.2 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front stop light switch not working (4.3.2 (a) (iii)) | 1 |