| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Registration plate issues | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Horn not working |1.7.3a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Brake hose damaged | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Registration plate lamp issues | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Central Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Central Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Front Position lamp switch faulty |1.1.4a| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator obviously incorrectly positioned both (4.4.3 (a)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |