| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 7 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Fuel cap sealing washer missing |7.2.2c| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Registration plate issues | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear reflector on motorcycle obscured |1.4.1| | 4 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear reflector on motorcycle obscured |1.4.2b| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Front Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Lower Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Nearside Indicator switch insecure |1.5.4| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Offside Front suspension assembly component excessively bent |2.3.1| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Upper Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Riders seat with a defective supporting structure (6.2.5 (a) (i)) | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Upper Fork yoke deformed |2.1.1b| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Brake component leaking fluid |3.2.B4| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Offside Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak FORK SEAL LEAKING BADLY (5.3.2 (b)) | 1 |
| Rear Rear reflector missing COVERED BY THE L PLATE (4.8.2 (a) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |