| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 71 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 30 |
| Drive chain excessively loose |6.2.1d| | 16 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Front wheel bearings have excessive free play |2.3.5b| | 14 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 13 |
| Registration plate issues | 11 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Throttle operating incorrectly |6.2.1f| | 11 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 11 |
| Drive chain worn to excess |6.2.1e| | 9 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 8 |
| Front wheel bearings are excessively rough |2.3.5b| | 8 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 7 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 5 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 4 |
| Nearside Rear Footrest insecure |6.2.1a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Rear Brake disc|s| cracked |3.2.A1g| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 3 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Handlebar deformed |2.1.1b| | 3 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 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 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Nearside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Offside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Front position lamp missing |1.1.1a| | 2 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Brake performance not tested |3.3| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Nearside Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Offside Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |