| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 11 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 8 |
| Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 3 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Offside Shock absorber has a serious fluid leak oil present on brake caliper but not yet reached disc and pads (5.3.2 (b)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen incorrect headlamp opperation (4.1.2 (a)) | 1 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak R/H fork seal leaking. (5.3.2 (b)) | 1 |
| Offside Front Suspension attachment bracket/mounting insecure fork locking device (5.3.3 (a) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Footrest missing pillion seat still present (6.2.12 (a)) | 1 |
| Rear Brake component modification unsafe no rear brake pressure (1.1.21 (d) (i)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake pipe leaking (1.1.11 (b)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Offside All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Brake component insecure R clip missing from the front brake pin. (1.1.21 (c)) | 1 |
| Front Steering damper ineffective leaking (2.1.4 (d) (i)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Nearside Front Clutch lever shortened so it cannot be readily operated (6.2.7 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak Fork seal leaking (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak Fork Seal Leaking To An Extent That Brake May Become Contaminated (5.3.2 (b)) | 1 |
| Stop lamp not working when front brake lever applied (4.3.1 (a) (ii)) | 1 |
| Central Rear Stop lamp not working front brake and rear brake. (4.3.1 (a) (ii)) | 1 |
| Rear Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Suspension component modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber likely to become detached (5.3.2 (a) (ii)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (Fork Seal) (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (Fork Seal) (5.3.2 (b)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Registration plate lamp issues | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Drive belt excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Drive belt pulley excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Front Brake pipe likely to become detached or damaged (1.1.11 (d) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Revs rise significantly when handlebars are turned from lock to lock (6.2.7 (a) (ii)) | 1 |