| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Horn not working |1.7.3a| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Registration plate issues | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Nearside Fuel system component leaking |7.2.1a| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 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 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Front Brake locking device insecure |3.2.A1e| | 1 |
| Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component fork yokes |2.3.4| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Plate brake test No brake control achieves an efficiency of 30%. |3.3.B2a| | 1 |
| Plate brake test Neither brake control achieves an efficiency of 25% |3.3.B2b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake locking device missing split pins missing from clevis pins |3.2.A1e| | 1 |
| Front Brake back plate|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Stop lamp lens defective such that the emitted light is adversely affected Not working with side light on |4.3.1 |b| |ii|| | 1 |
| Rear Position lamp lens seriously defective Too bright can not see brake light |4.2.1 |b|| | 1 |
| Nearside Rear Lower Suspension rod attachment bracket/mounting insecure Torque reaction arm retaining nut missing |5.3.3 |a| |i|| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Rear Wheel spoke excessively loose two |4.2.1b| | 1 |
| Rear Wheel spoke excessively bent two |4.2.1b| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Fuel pipe union leaking |7.2.1a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |