| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 35 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 28 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 27 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 26 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 19 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 18 |
| Horn not working |1.7.3a| | 18 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 17 |
| Steering headbearing has excessive free play |2.2.2| | 17 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 14 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 11 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 10 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 9 |
| Brake lever has inadequate reserve travel |3.1.3b| | 8 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 8 |
| Registration plate issues | 8 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 6 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Front Steering headbearing has excessive free play |2.2.2| | 5 |
| Stop lamp affected by the operation of the horn |1.3.2| | 4 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 4 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 4 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 4 |
| Front Brake cable has a significantly damaged outer casing. |3.2.A1b| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Front Brake lever insecure |3.1.2a| | 3 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Rear Gradient brake test indicates a binding brake |3.3.D1c| | 3 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 3 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front Gradient brake test indicates a sticking brake |3.3.D1c| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear Wheel fractured significantly reducing the original strength |4.2.1a| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Handlebar mounting clamp loose |2.1.1a| | 2 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 2 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Brake locking device insecure |3.2.A1e| | 2 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 2 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| 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| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 2 |