| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Rear reflector on motorcycle missing |1.4.1| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Front wheel bearings are excessively rough |2.3.5b| | 10 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Registration plate issues | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 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| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Nearside Direction indicator not working |1.5.1c| | 2 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Drive chain excessively loose and very dry |6.2.1d| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Brake hose which buldges |3.2.B4| | 1 |
| Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Nearside Front wheel has a missing wheel bolt|s| |4.2.3a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Centre Front Upper Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Rear Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Centre Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front Direction indicator obscured |1.5.1a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Nearside Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |