| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 16 |
| Headlamp aim out of alignment | 11 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 9 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Stop lamp remains on when the brakes are released | 6 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 5 |
| Registration plate issues | 5 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 3 |
| Front brake disc in such a condition that it is seriously weakened | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 3 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls rear brake switch (4.3.2 (a) (iii)) | 2 |
| Front All position lamps not working (4.2.1 (a)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake effort inadequate at a wheel not adjusted correctly (1.2.1 (a) (i)) | 1 |
| Rear Brake lever has insufficient reserve travel not adjusted (1.1.2 (a)) | 1 |
| Rear Stop lamp not working control (4.3.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake effort inadequate at a wheel under adjusted (1.2.1 (a) (i)) | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering chassis bent short wheel base (6.1.1 (a) (ii)) | 1 |
| Offside Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp with a multiple light source more than 1/2 not functioning front switch replaced (4.3.1 (a) (ii)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Stop lamp not working rear brake (4.3.1 (a) (ii)) | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering operation impeded by a leg shield front mudgard fouling fairing (2.1.4 (e)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect high and low reversed on switch. (4.1.2 (c)) | 1 |
| Nearside Front Upper Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Central Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls not working off rear brake (4.3.2 (a) (iii)) | 1 |
| Brake lever has insufficient reserve travel both (1.1.2 (a)) | 1 |
| Front Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |