| Most common failures | No# failures |
|---|
| Registration plate issues | 33 |
| Rear reflector on motorcycle missing |1.4.1| | 28 |
| Headlamp aim out of alignment | 12 |
| Registration plate lamp issues | 7 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Nearside Footrest missing (6.2.12 (a)) | 2 |
| Offside Footrest missing (6.2.12 (a)) | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Rear Upper Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Rear Lower Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Wheel excessively damaged (5.2.2 (c) (i)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Position lamp likely to become detached (4.2.1 (c) (ii)) | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride rear sprocket carrier nut |6.2.1h| | 1 |
| Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute (1.5.1c) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Direction indicator missing |1.5.1a| | 1 |
| Offside Direction indicator missing |1.5.1a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Rear Drive chain worn to excess chain is beyond being safe |6.2.1e| | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Stop lamp switch with a delay in operation Rear foot brake pedal (4.3.2 (a) (ii)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Offside Rear Direction indicator obscured |1.5.1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |