| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Windscreen wiper does not clear the windscreen effectively | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Registration plate lamp issues | 5 |
| Registration plate issues | 4 |
| Brake pipe excessively corroded | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 2 |
| Offside Front Direction indicator missing (4.4.1 (a) (ii)) | 2 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Nearside Front Outer Steering locking device missing track rod end |2.1.3 |d|| | 1 |
| Offside Front Outer Steering locking device missing trackrod end |2.1.3 |d|| | 1 |
| Offside Front Upper Suspension arm ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 1 |
| Service brake: efficiency below requirements |3.7.C.1a| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Offside Rear Direction indicator insecure |1.4.A.2b| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Wheel bearing has excessive play Also rough in rotation |5.1.3 |a| |i|| | 1 |
| Rear wheel spindle securing nut|s| loose retighten |2.4.A.2b| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Centre Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear brake binding | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Upper Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Offside Front Upper Anti-roll bar ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Nearside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Rear Seat belt buckle not functioning as intended (7.1.2 (d)) | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Offside Rear Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Road wheel fixing missing Bolt missing (5.2.1 (a) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt (5.3.4 (b) (ii)) | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Windscreen washer not working | 1 |
| Front Brake disc significantly and obviously worn both (1.1.14 (a) (i)) | 1 |
| Anti-roll bar linkage ball joint dust cover no longer prevents the ingress of dirt both front drop link gaiters split (5.3.4 (b) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Side repeater not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Side repeater not working (4.4.1 (a) (ii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (c) (ii)) | 1 |
| Rear Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure Front fairing/headlight brace loose (6.1.1 (b) (i)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Brake master cylinder insecure front brake reservior insecure (1.1.10 (c)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |