| Most common failures | No# failures |
|---|
| Registration plate issues | 12 |
| Headlamp aim out of alignment | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| 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| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Front Wheel spoke cracked. |4.2.1b| | 1 |
| Front Wheel fractured significantly reducing the original strength |4.2.1a| | 1 |
| Front Brake hose leaking fluid (3.2.B4) | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |