| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Registration plate lamp issues | 3 |
| Registration plate issues | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Rear Drive chain sprocket so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn lower shock bearing (5.3.4 (a) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn lower shock (5.3.4 (a) (i)) | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Suspension rod ball joint excessively worn rear lower shock bearing excessive play |5.3.4 |a| |i|| | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Throttle operating incorrectly not returning (6.2.7 (a) (i)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Stop lamp not working When front brake is applied. (4.3.1 (a) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp with a multiple light source more than 1/2 not functioning (4.3.1 (a) (ii)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Brake pedal anti-slip provision missing (1.1.2 (c)) | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Throttle operating incorrectly throttle housing insecure |loose| |6.2.1f| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Stop lamp not working Stop lamp does not illuminate when front brake lever is activated (4.3.1 (a) (ii)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail rear sprocket (6.1.7 (c) (ii)) | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up rear wheel bearings (5.1.3 (b) (ii)) | 1 |
| Rear Rear reflector missing no rear reflector (4.8.2 (a) (ii)) | 1 |
| Rear Drive chain worn to excess drive chain worn and riding high over rear sprocket (6.1.7 (c) (i)) | 1 |
| Front Brake grabbing severely front brake grabs (1.2.1 (c)) | 1 |
| Rear Brake effort inadequate at a wheel rear brake performance at rear wheel not enough braking effort (1.2.1 (a) (i)) | 1 |
| Rear Suspension component ball joint excessively worn all rear suspension linkage bushes badly worn (5.3.4 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Fuel hose leaking |7.2.1a| | 1 |