| Most common failures | No# failures |
|---|
| Stop lamp remains on when the brakes are released | 50 |
| Headlamp aim out of alignment | 28 |
| Registration plate lamp issues | 21 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 11 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 11 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 7 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Riders seat insecure (6.2.5 (a) (ii)) | 6 |
| Horn not working (7.7 (a)) | 6 |
| Registration plate issues | 6 |
| Horn sound not in accordance with requirements (7.7 (c)) | 5 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 4 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 3 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Offside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 3 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Brake performance unable to be tested (1.2.1 (g)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Offside Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Road spring missing and control of the motorcycle is likely to be adversely affected (5.3.1 (c) (ii)) | 1 |
| Vehicle identification number not legible (0.2 (b)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Position lamp showing red light to the front (4.2.3 (a) (ii)) | 1 |
| Forks fractured (2.2.2 (d) (i)) | 1 |
| Rear Shock absorber has negligible damping effect both (5.3.2 (b)) | 1 |
| Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Nearside Front Suspension component mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Offside Front Suspension component mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Central Front Headlamp aim unable to be tested Cannot test due to forks stuck down. (4.1.2 (b)) | 1 |
| Central Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Rear Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Stop lamp not working front brake (control 1) (4.3.1 (a) (ii)) | 1 |
| Nearside Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Fork yoke in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Brake disc fractured FRONT AND BACK (1.1.14 (a) (ii)) | 1 |
| Stop lamp switch with a delay in operation FRONT AND BACK BRAKE LIGHT (4.3.2 (a) (ii)) | 1 |
| Front Handlebar grip insecure to handlebar LEFT (2.2.1 (d) (ii)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Brake disc fractured back disc (1.1.14 (a) (ii)) | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Rear Stop lamp not working both controls (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working right (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working control 1 (4.3.1 (a) (ii)) | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Central Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Position lamp switch does not operate in accordance with the requirements (4.2.2 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake grabbing severely ** master cylinder piston needs lube ** (1.2.1 (c)) | 1 |
| Rear Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Brake lever is so short that the brake cannot be readily applied Front brake lever, found snapped short. (1.1.2 (d)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Stop lamp not working control one (4.3.1 (a) (ii)) | 1 |
| Front Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Front Brake disc insecure bend (1.1.14 (a) (ii)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Stop lamp not working all controls (4.3.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls REAR BRAKE SWITCH (4.3.2 (a) (iii)) | 1 |
| Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Steering linkage component fractured to the extent that steering is affected (2.1.3 (c) (ii)) | 1 |
| Rear Stop lamp not working control (4.3.1 (a) (ii)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Brake performance unable to be tested due to brake leaking (1.2.1 (g)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front brake switch (4.3.2 (a) (iii)) | 1 |