| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 10 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Registration plate issues | 5 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Exhaust excessively deteriorated |7.1.1a| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear position lamp does not illuminate immediately when it is 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 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Headlamp insecure |1.2.3b| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Offside Indicator switch defective wont stay on |1.5.4| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Shock absorber has negligible damping effect evidence of oil leaked down forks no oil at time of test (5.3.2 (b)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Floor brake test indicates a severely juddering brake |3.3C2d.| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Rear position lamp incorrect colour hole in lens. |1.1.2b| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Nearside Front Brake component is severely distorted Brake Disc |3.1.5| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Headlamp not working on main beam bulb was blown (4.1.1 (a) (ii)) | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Front Direction indicator obscured |1.5.1a| | 1 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 1 |
| Rear Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear suspension bush has excessive free play rear suspension/engine mount bush worn |2.4.A2a|i|| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Nearside Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |