| Most common failures | No# failures |
|---|
| Horn not working |1.7.3a| | 6 |
| Headlamp aim out of alignment | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Rear Rear suspension component loose |2.4.A.1a| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Nearside Lower Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Brake caliper leaking |1.1.16 |b| |i|| | 1 |
| Rear Brake caliper has no reserve travel and braking performance affected |1.1.16 |e| |ii|| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear suspension movement is excessively stiff too much rebound |2.4.A.3b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Offside Handlebar mounting clamp bolt loose (2.1.1a) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.5.1) | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |