| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 56 |
| Headlamp aim out of alignment | 47 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 27 |
| Riders seat insecure |6.2.1a| | 25 |
| Registration plate issues | 23 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 18 |
| Steering headbearing has excessive free play |2.2.2| | 17 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 17 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 15 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Horn not working |1.7.3a| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 7 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 7 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 7 |
| Throttle operating incorrectly |6.2.1f| | 7 |
| Exhaust excessively deteriorated |7.1.1a| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 4 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 4 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 4 |
| Headlamp switch insecure |1.2.4| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear Front mudguard insecure |2.3.7| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Indicator switch insecure |1.5.4| | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Position lamp switch insecure |1.1.4b| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front An item not tested |Manual| | 2 |
| Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Front Riders seat insecure |6.2.1a| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Nearside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Offside Rear Footrest insecure |6.2.1a| | 2 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Nearside Front Brake lever excessively damaged |3.2.A1c| | 2 |
| Steering lock stop ineffective |2.1.3| | 2 |
| Brake hose damaged | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 2 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| 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| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |