| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 12 |
| Direction indicators not working |1.5.1c| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Horn not working |1.7.3a| | 5 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Registration plate issues | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Brake hose excessively deteriorated | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Riders seat insecure |6.2.1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake component is severely distorted |3.1.5| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake hose damaged | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake drum|s| insecure |3.2.A1g| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Brake lever excessively chafed |3.2.A1a| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear wheel spindle loose |2.4.A.2b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake back plate|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Headlamp aim beam image kick up to the offside mask converter fitted
|1.6| | 1 |
| Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Nearside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Offside Drag link end ball joint has excessive play |2.2.B.1f| | 1 |
| Offside Front Axle king pin has excessive play in pin and/or bush adversely affecting the steering |2.5.A.3a| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Horn missing Re[placed with new horn |1.7.1| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |