| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 22 |
| Brake hose excessively deteriorated | 11 |
| Headlamp aim beam image kick up to the offside |1.6| | 10 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Registration plate issues | 6 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Brake hose damaged | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride locking nut or split pin missing from torque arm |6.2.1h| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride rear sprocket nuts loose |6.2.1h| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Front Steering lock stop maladjusted |2.1.3| | 1 |
| Offside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Throttle operating incorrectly |6.2.1f| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Front Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Centre Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| An item not tested |Manual| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Sidecar attachment fractured |5.1.1b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Brake locking device missing t/arm |3.2.A1e| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Brake pipe excessively corroded | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Centre Rear Stop lamp remains on when the brake is released (1.3.1e) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front An item not tested |Manual| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Horn missing |1.7.1| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Nearside Position lamp switch insecure |1.1.4b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |