| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 12 |
| Registration plate issues | 12 |
| Headlamp aim out of alignment | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Brake hose excessively deteriorated | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Lower Front suspension assembly component loose |2.3.1| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Nearside Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Offside Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear brake |1.3.1a| | 1 |
| Offside Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |