| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 8 |
| Registration plate issues | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Direction indicators not working |1.5.1c| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Upper Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Direction indicator obviously incorrectly positioned too close together |4.4.3 |a|| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Inner Rear Lower Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on (1.1.3a) | 1 |
| Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Lower Rear suspension component loose |2.4.A.1a| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |