| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 15 |
| Headlamp aim out of alignment | 8 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Registration plate issues | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Footrest missing both |6.2.12 |a|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 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 |
| Offside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Upper Direction indicators not working |1.5.1c| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| 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| | 1 |
| Nearside Front Exhaust mounting missing |7.1.1c| | 1 |
| Centre Front Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp aim headlamp deteriorated and function impaired No beam pattern |1.2.3a| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Stop lamp missing (4.3.1 (a) (ii)) | 1 |
| Fuel cap missing (6.1.3 (b) (i)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Nearside Rear Upper Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition silencer needs repacking.excessively noisy (8.1.1 (a)) | 1 |
| Offside Rear Brake master cylinder defective but brake still operating rear brake needed bleeding (1.1.10 (b) (i)) | 1 |
| Offside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| All direction indicators not working Permanently on when switch is operated (4.4.1 (a) (ii)) | 1 |
| Brake indicates excessive fluctuation of brake effort Front (1.2.1 (e)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Suspension arm ball joint excessively worn swinging arm bearings excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Shock absorber has a serious fluid leak both front seals leaking (5.3.2 (b)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| All direction indicators light intensity significantly reduced flashing erratically (4.4.3 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Rear Lower Brake disc in such a condition that it is seriously weakened (1.1.14 (a) (ii)) | 1 |
| Nearside Rear Lower Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |