| Most common failures | No# failures |
|---|
| Registration plate issues | 27 |
| Rear reflector on motorcycle missing |1.4.1| | 21 |
| Headlamp aim out of alignment | 12 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| 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| | 4 |
| Rear reflector on motorcycle missing (1.4.1) | 4 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Exhaust markings indicating not for road use or similar wording (7.1.4) | 2 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Direction indicator incorrect colour (1.5.1b) | 1 |
| Rear Stop lamp does not emit a steady light (1.3.1b) | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Central Rear Rear reflector missing missing (4.8.2 (a) (ii)) | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| All direction indicators incorrect colour showing white light (4.4.3 (a)) | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording (7.1.4) | 1 |
| Stop lamp does not illuminate immediately a brake applies both (1.3.1a) | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Throttle operating incorrectly sticking on |6.2.1f| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |