| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 29 |
| Headlamp aim out of alignment | 27 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 26 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 25 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 23 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 18 |
| Registration plate issues | 15 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 13 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 12 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 10 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 8 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| 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| | 6 |
| Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 5 |
| Headlamp insecure |1.2.3b| | 5 |
| Horn not working |1.7.3a| | 5 |
| Riders seat insecure |6.2.1a| | 5 |
| Front position lamp incorrect colour |1.1.2a| | 4 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Direction indicators not working |1.5.1c| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Headlamp aim not tested |1.6| | 4 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Horn sounds harsh or grating |1.7.3c| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 3 |
| Brake performance not tested |3.3| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 3 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 3 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Motorcycle structure cracked |6.1.1a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Upper Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Upper Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Brake component is severely distorted |3.1.5| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear Brake lever attachment screws missing |3.1.2b| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Gradient brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.D1b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Rear Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Rear suspension component loose |2.4.A.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Nearside Brake lever pivots excessively worn |3.1.3a| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Offside Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear wheel has a loose wheel bolt|s| |4.2.3a| | 1 |
| Rear Brake lining|s| contaminated by oil or grease |3.2.A1k| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Direction indicators not working all |1.5.1c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Upper Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Offside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Nearside Rear Upper Direction indicators not working |1.5.1c| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Front Indicator switch defective |1.5.4| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake hose excessively kinked |3.2.B3a| | 1 |
| Offside Front Forks excessively corroded (2.2.2 (d) (i)) | 1 |
| Central Front Upper Fork yoke modification unsafe (2.2.2 (e)) | 1 |
| Central Rear Lower Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Stop lamp not working front lever switch (4.3.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |