| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Horn not working |1.7.3a| | 6 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Registration plate issues | 4 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 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 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Registration plate lamp issues | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Exhaust silencer likely to become detached |8.1.1 |b| |ii|| | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Lower Brake caliper leaking front caliper leaking fluid, both copper washers replaced and fluid replaced (1.1.16 (b) (i)) | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Nearside Rear Direction indicator not working Fixed during Test. |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Brake component leaking fluid |3.2.B4| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |