| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 56 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 34 |
| Registration plate lamp issues | 33 |
| Registration plate issues | 26 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 20 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 10 |
| Stop lamp remains on when the brakes are released | 8 |
| Horn not working |1.7.3a| | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Stop lamp not working |4.3.1 |a| |ii|| | 6 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Riders seat insecure (6.2.5 (a) (ii)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 3 |
| Rear wheel insecure |4.2.3b| | 3 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Front Brake grabbing severely (1.2.1 (c)) | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Stop lamp damaged and function impaired |1.3.3a| | 2 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 2 |
| Horn control not functioning. |1.7.2b| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Horn control defective |1.7.2a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |