| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Registration plate issues | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Direction indicator incorrect colour |1.5.1b| | 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 |
| Rear Stop lamp not working When Using front brake lever. |4.3.1 |a| |ii|| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn swingarm bushes worn (5.3.4 (a) (i)) | 1 |
| Front Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Rear Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |