| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 33 |
| Registration plate issues | 19 |
| Rear reflector on motorcycle missing |1.4.1| | 11 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Registration plate lamp issues | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 3 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Horn not working |1.7.3a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Headlamp aim not tested no defined pattern to beam |1.6| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Offside Front Upper Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Rear Direction indicator obscured |1.5.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Central Front Lower Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |