| Most common failures | No# failures |
|---|
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 17 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Headlamp aim out of alignment | 16 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 15 |
| Steering headbearing has excessive free play |2.2.2| | 15 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Horn not working |1.7.3a| | 11 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 8 |
| Registration plate issues | 8 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 7 |
| Riders seat insecure |6.2.1a| | 7 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| 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| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Fuel pipe leaking |7.2.1a| | 2 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 2 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 2 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Headlamp aim not tested |1.6| | 2 |
| Fuel hose leaking |7.2.1a| | 2 |
| Front Front suspension assembly component loose |2.3.1| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Brake pedal insecure |3.1.2a| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| An item not tested |Manual| | 1 |
| Offside Rear Lower Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Centre Front Lower Front suspension assembly component loose |2.3.1| | 1 |
| Offside Front Lower Brake cable knotted |3.2.A1b| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Front wheel spindle loose |2.3.3a| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake cable knotted |3.2.A1b| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake disc contaminated grease (1.1.14 (b)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Centre Front Gradient brake test indicates a binding brake |3.3.D1c| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Front position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front 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 |
| Nearside Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on not working |1.1.3a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Front Horn not loud enough to be heard by another road user bulb horn fitted for test |1.7.3a| | 1 |
| Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Front Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Rear Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Gradient brake test indicates a severely grabbing brake |3.3.D1d| | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Offside 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 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Front suspension spring corroded and seriously weakened |2.3.2b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Nearside Front Lower Front suspension assembly component loose |2.3.1| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Shock absorber insecurely attached damper |5.3.2 |a| |i|| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front suspension has severe distortion of a load bearing member or its supporting structure. |2.3.8| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Rear wheel insecure |4.2.3b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Front Front wheel spindle loose |2.3.5a| | 1 |
| Rear Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Fuel pipe union leaking |7.2.1a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Gradient brake test indicates a sticking brake |3.3.D1c| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Front Steering linkage has excessive free play |2.2.2| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |