| Most common failures | No# failures |
|---|
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Horn not working (7.7 (a)) | 2 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp aim out of alignment | 2 |
| Registration plate issues | 2 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Suspension arm pin or bush excessively worn swing arm (5.3.4 (a) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Nearside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Rear Brake back plate insecure (1.1.14 (d)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort front disc is distorted (1.2.1 (e)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working When steering turned. (4.3.1 (a) (ii)) | 1 |
| All position lamps not working When steering turned. (4.2.1 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Engine mounting/bracket missing (6.1.8 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn excessive freeplay swingarm (5.3.4 (a) (i)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Footrest insecure (6.2.12 (a)) | 1 |
| Dipswitch does not operate immediately when selected on main beam mainbeam and low beam working wrong way round (4.1.3 (b)) | 1 |
| Motorcycle structure modified such that structural rigidity is significantly reduced front engine mounting not fitted (6.1.1 (d) (i)) | 1 |
| Front Stop lamp adversely affected by the operation of another lamp head light comes on when brake is applied (4.3.3 (b)) | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp front head light comes on when back brake is applied (4.3.3 (b)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Central Rear Upper Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Central Front Upper Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Central Front Upper Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Central Front Upper Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Central Front Upper Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Direction indicator obviously incorrectly positioned integral indicators not 180mm between lighted surfaces (4.4.3 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Suspension component has excessive wear or free play swinging arm (5.3.3 (d)) | 1 |