| Most common failures | No# failures |
|---|
| Steering headbearing has excessive free play |2.2.2| | 36 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 28 |
| Headlamp aim out of alignment | 28 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 27 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 18 |
| Registration plate issues | 13 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 13 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Front Steering headbearing has excessive free play |2.2.2| | 9 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 7 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 7 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Headlamp insecure |1.2.3b| | 6 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Front position lamp incorrect colour |1.1.2a| | 6 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 5 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Direction indicators not working |1.5.1c| | 5 |
| Horn not working |1.7.3a| | 5 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 4 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 4 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Front Headlamp insecure |1.2.3b| | 3 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Stop lamp emits other than a steady red light |1.3.1b| | 3 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear position lamp incorrect colour |1.1.2b| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 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 Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Headlamp aim not tested |1.6| | 2 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Stop lamp missing |1.3.3a| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| An item not tested |Manual| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Rear position lamp insecure |1.1.1c| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake component leaking fluid |3.2.B4| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Motorcycle structure cracked |6.1.1a| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Centre Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Centre Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Rear position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Horn control not functioning. |1.7.2b| | 1 |
| Offside Outer Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Brake hose excessively deteriorated | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Lower Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Brake lever attachment screws loose |3.1.2b| | 1 |
| 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 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Centre Rear Lower Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Rear Lower Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Centre Rear Lower Brake performance not tested |3.3| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Rear position lamp missing |1.1.1a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Front suspension assembly has excessive free play in the pivot bearings. |2.3.2| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake hose which buldges |3.2.B4| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Centre 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 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Dipswitch does not deflect the main beam/s, making them into dipped beam/s |1.2.2b|ii|| | 1 |
| Front Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside An item not tested |Manual| | 1 |
| Nearside Front Upper Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Front Upper Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Rear Upper Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working Rear brake (4.3.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |