| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 21 |
| Steering headbearing has excessive free play |2.2.2| | 19 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 17 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 17 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 15 |
| Riders seat insecure |6.2.1a| | 15 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Registration plate issues | 9 |
| Fuel cap sealing washer missing |7.2.2c| | 8 |
| Front Steering headbearing has excessive free play |2.2.2| | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Offside Steering lock stop ineffective |2.1.3| | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 5 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 5 |
| Nearside Front Direction indicator not working |1.5.1c| | 5 |
| Horn not working |1.7.3a| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Direction indicators not working |1.5.1c| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Headlamp insecure |1.2.3b| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 3 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Nearside Steering lock stop missing |2.1.3| | 3 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Front Brake cable has a significantly damaged outer casing. |3.2.A1b| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 3 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 3 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Horn control defective |1.7.2a| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| An item not tested |Manual| | 2 |
| Front Brake cable badly frayed |3.2.A1b| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 2 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Steering lock stop missing |2.1.3| | 2 |
| Front suspension assembly component excessively bent |2.3.1| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Lower Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Riders seat insecure |6.2.1a| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Front position lamp insecure |1.1.1c| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Front Indicator tell tale not functioning |1.5.2| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake lever has restricted free movement |1.1.15 |e|| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Brake component is excessively corroded |3.1.5| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Centre Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride centre stand loose and catching floor |6.2.1h| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Central Front Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Sidecar rear position lamp missing |1.1.1a| | 1 |
| Front Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Offside Exhaust mounting missing |7.1.1c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Brake lever insecure |3.1.2a| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Horn control not readily accesible. |1.7.2a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort spindle binding |3.3.A1c| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Upper Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Upper Horn not working |1.7.3a| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Brake lever cannot be released smoothly front |3.1.3d| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Offside Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected notchy steering |2.2.2 |f| |ii|| | 1 |
| Fork yoke modification unsafe lock stops not present |2.2.2 |e|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear Wheel excessively distorted buckled |5.2.2 |c| |i|| | 1 |
| Rear Wheel excessively damaged groove ground to previous fouling |5.2.2 |c| |i|| | 1 |
| Fuel cap ineffective cracked |6.1.3 |b| |i|| | 1 |
| Fuel cap leaking seal missing |6.1.3 |b| |i|| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Fuel pipe leaking |7.2.1a| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Brake lever is inoperative |3.1.3c| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Front Upper Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Lower Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Centre Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Rear Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Centre Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Nearside Rear Brake cable has a significantly damaged outer casing. |3.2.A1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |