| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 44 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 28 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 23 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 19 |
| Drive chain excessively loose |6.2.1d| | 15 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 14 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 11 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Throttle operating incorrectly |6.2.1f| | 10 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Registration plate issues | 9 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 9 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Drive chain worn to excess |6.2.1e| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Headlamp aim beam image kick up to the offside |1.6| | 7 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 7 |
| Registration plate lamp issues | 7 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Drive chain excessively tight |6.2.1d| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Offside Handlebar deformed |2.1.1b| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 4 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 3 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Offside Front Direction indicator insecure |1.5.3b| | 3 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 3 |
| Rear Drive chain worn to excess |6.2.1e| | 3 |
| Horn not working |1.7.3a| | 3 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Fuel system component leaking |7.2.1a| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 2 |
| Offside Rear Footrest insecure |6.2.1a| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear Rear mono-shock pivot seized |2.4.B.4| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Rear mono-shock pivot seized |2.4.B.4| | 2 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Rear Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 2 |