| Most common failures | No# failures |
|---|
| Registration plate issues | 18 |
| Headlamp aim out of alignment | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Drive chain excessively loose |6.2.1d| | 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 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Central Rear Brake pedal mounting insecure pivot pin missing |3.1.2a| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Rear Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Lower Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Brake fluid reservoir fluid not visible |1.1.10 |d| |iii|| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Handlebar so insecure it is likely to become detached |2.2.1 |b| |ii|| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Nearside Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |