| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 13 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 12 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 12 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 12 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Registration plate issues | 7 |
| Horn not working |1.7.3a| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Direction indicators not working |1.5.1c| | 4 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Headlamp switch faulty |1.2.4| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Position lamp switch faulty |1.1.4a| | 2 |
| Nearside Front Upper Direction indicator insecure |1.5.3b| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front Horn is not continous or uniform |1.7.3c| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Centre Front Upper All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies from front and rear brake levers |1.3.1a| | 1 |
| Rear Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Offside Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Centre Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Centre Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Headlamp aim not tested as dip beam is not working |1.6| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Headlamp switch faulty |1.2.4| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Offside Upper Exhaust excessively deteriorated |7.1.1a| | 1 |
| Brake lever is inoperative |3.1.3c| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front position lamp obscured more than 50% |1.1.1d| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Front Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Brake cable excessively corroded |3.2.A1b| | 1 |
| Offside Indicator switch defective |1.5.4| | 1 |
| Stop lamp does not illuminate immediately a brake applies control 2 |1.3.1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Inner Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Outer Front Lower Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Rear Brake lever is inoperative |3.1.3c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Front Brake component is fractured |3.1.5| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Rear Upper Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front Upper Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Upper Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Centre Front Upper Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Upper Indicator switch insecure |1.5.4| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Nearside An item not tested |Manual| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| 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 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |