| Most common failures | No# failures |
|---|
| Registration plate issues | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 3 |
| Offside Rear Footrest missing (6.2.12 (a)) | 3 |
| Horn not working |1.7.3a| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Horn not working (1.7.3a) | 2 |
| Rear wheel bearings have excessive free play (2.4.A.2c) | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Headlamp aim out of alignment | 2 |
| Headlamp at least one does not illuminate on main beam (1.2.2a(ii)) | 2 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Front Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Rear Lower Chain guard insecure |6.2.1c| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Lower Rear suspension bush has excessive free play (2.4.A2a(i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm. (5.3.4 (a) (i)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Rear reflector missing obscured by l plate (4.8.2 (a) (ii)) | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Drive chain excessively loose (6.2.1d) | 1 |
| Nearside Indicator switch insecure (1.5.4) | 1 |
| Rear Suspension component mounting modified so the suspension is inoperative links. (5.3.3 (c) (ii)) | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Suspension component has excessive wear or free play (5.3.3 (d)) | 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 |
| Direction indicators not working |1.5.1c| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak SEAL FAILED (5.3.2 (b)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Brake performance not tested (3.3) | 1 |
| Rear Drive chain sprocket worn to excess (6.2.1e) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Nearside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Offside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Front wheel bearings have excessive free play (2.3.5b) | 1 |
| Rear suspension bush has excessive free play (2.4.A2a(i)) | 1 |
| Offside Front Position lamp switch insecure (4.2.2 (b)) | 1 |
| Nearside Front Suspension component mounting has an unsafe modification FORK LEG INCORRECTLY MOUNTED (5.3.3 (c) (i)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Brake performance not tested BOTH BRAKES WORN OUT (1.2.1 (g)) | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |