| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Registration plate issues | 12 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Registration plate lamp issues | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Stop lamp not working front brake light does not operate rear light - PRS - check & clean connectors (4.3.1 (a) (ii)) | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake fluid significantly below minimum mark |1.1.10 |d| |ii|| | 1 |
| Offside Footrest insecure feeler peg tightened |6.2.1a| | 1 |
| Throttle operating incorrectly does not return on right hand lock |6.2.7 |a| |i|| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Footrest insecure |6.2.12 |a|| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Stop lamp not working switch adjustment and detatched spring (4.3.1 (a) (ii)) | 1 |
| Throttle operating incorrectly sticky twist grip (6.2.7 (a) (i)) | 1 |
| Front Brake hose excessively kinked |3.2.B3a| | 1 |