| Most common failures | No# failures |
|---|
| Registration plate issues | 8 |
| Horn not working |1.7.3a| | 6 |
| Direction indicators not working |1.5.1c| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Headlamp aim out of alignment | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Front Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Upper Brake locking device missing |3.2.A1e| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 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 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Rear Position lamp likely to become detached |4.2.1 |c| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Upper Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| All position lamps not working Front and rear. (4.2.1 (a)) | 1 |
| Horn missing |1.7.1| | 1 |
| Registration plate lamp issues | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle operation sticks while steering is turned from lock to lock. (6.2.7 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake component insecure (1.1.21 (c)) | 1 |
| Central Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |