| Most common failures | No# failures |
|---|
| Registration plate issues | 33 |
| Headlamp aim out of alignment | 15 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Horn not working |1.7.3a| | 8 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| 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| | 4 |
| Front Wheel spoke excessively loose |4.2.1b| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Rear Wheel spoke excessively loose |4.2.1b| | 3 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Registration plate lamp issues | 3 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Fuel system component insecure |7.2.1b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Nearside Lower Motorcycle structure cracked |6.1.1a| | 1 |
| Nearside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear reflector on motorcycle does not reflect squarely to the rear |1.4.1| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Handlebar retaining device loose |2.2.1 |b| |i|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Lower Motorcycle structure is fractured and structural rigidity is significantly reduced |6.1.1 |a| |i|| | 1 |
| Rear Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Headlamp aim not tested dipped beam not working |4.1.2 |b|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| All position lamps do not illuminate immediately when switched on non start |1.1.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies non start |1.3.1a| | 1 |
| Horn not working non start |1.7.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam non start |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam non start |1.2.2a|ii|| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| All direction indicators not working CAN`T CHECK BIKE WONT START |4.4.1 |a| |ii|| | 1 |
| Headlamp not working on dipped beam CAN`T CHECK BIKE WONT START |4.1.1 |a| |ii|| | 1 |
| All position lamps not working CAN`T CHECK BIKE WONT START |4.2.1 |a|| | 1 |
| Stop lamp not working CAN`T CHECK BIKE WONT START |4.3.1 |a| |ii|| | 1 |
| Horn not working CAN`T CHECK BIKE WONT START |7.7 |a| |ii|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 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 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Front Brake disc fractured Excessive Lateral run out! (1.1.14 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |