| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Registration plate issues | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Nearside Rear Rear fog lamp not working |4.5.1 |a| |ii|| | 1 |
| Rear 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 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Registration plate lamp issues | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Stop lamp not working with front brake (4.3.1 (a) (ii)) | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Brake pedal is inoperative |3.1.3c| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Lower Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls rear lever inop (4.3.2 (a) (iii)) | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Exhaust silencer insecure |8.1.1 |b| |i|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Offside Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Offside Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |