| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 118 |
| Registration plate issues | 83 |
| Windscreen wiper does not clear the windscreen effectively | 51 |
| Registration plate lamp issues | 39 |
| Rear reflector on motorcycle missing |1.4.1| | 38 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 26 |
| Horn not working |1.7.3a| | 25 |
| Drive chain excessively loose |6.2.1d| | 21 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 19 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 14 |
| Headlamp aim beam image kick up to the offside |1.6| | 14 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 13 |
| Steering headbearing has excessive free play |2.2.2| | 13 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 13 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Brake pipe excessively corroded | 12 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 11 |
| Offside Stop lamp not working |1.2.1b| | 11 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 11 |
| Front wheel bearings have excessive free play |2.3.5b| | 11 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Nearside Rear Stop lamp not working |1.2.1b| | 10 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 10 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 10 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 9 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 9 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 9 |
| Anti-lock braking system warning lamp indicates an ABS fault | 9 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 8 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 7 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 7 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Drive chain worn to excess |6.2.1e| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Front Wheel spoke excessively loose |4.2.1b| | 6 |
| Rear Wheel spoke excessively loose |4.2.1b| | 6 |
| Horn missing |1.7.1| | 6 |
| Nearside Stop lamp not working |1.2.1b| | 6 |
| Drive chain excessively tight |6.2.1d| | 6 |
| Throttle operating incorrectly |6.2.1f| | 6 |
| Offside Rear fog lamp missing |1.3.2a| | 5 |
| Rear fog lamp switch missing |1.3.1a| | 5 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 5 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 5 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Rear fog lamp not working |1.3.2b| | 5 |
| Offside Front Direction indicator not working |1.5.1c| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Direction indicators not working |1.5.1c| | 5 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 5 |
| Headlamp aim beam image kick up to the offside |1.8| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Offside Front Anti-roll bar linkage insecure |2.4.G.1| | 4 |
| Offside Rear Stop lamp not working |1.2.1b| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 4 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 4 |
| Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 4 |
| Offside Front Direction indicator insecure |1.5.3b| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Handlebar deformed |2.1.1b| | 4 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Engine MIL inoperative or indicates a malfunction (8.2.1.2 (h)) | 4 |
| Nearside Front Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Offside Front Headlamp aim beam image kick up to the offside |1.8| | 3 |
| Rear fog lamp tell tale missing |1.3.1b| | 3 |
| Exhaust emissions Lambda reading after 2nd fast idle outside specified limits |7.3.D.3| | 3 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 3 |
| Headlamp excessively damaged so that the light output is severely reduced |1.7.5a| | 3 |
| Horn control missing |1.6.1| | 3 |
| Windscreen has damage | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3 |
| Horn not working |1.6.2a| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Nearside Rear coil spring broken |2.4.C.1a| | 3 |
| Nearside Front Anti-roll bar linkage insecure |2.4.G.1| | 3 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 3 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Offside Front Front position lamp|s| not working |1.1.A.3b| | 3 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 3 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Battery insecure |1.9.1| | 3 |
| Nearside Rear Footrest missing |6.2.1a| | 3 |
| Offside Rear Footrest missing |6.2.1a| | 3 |
| Offside Front Suspension arm rubber bush deteriorated resulting in excessive movement |2.4.G.2| | 3 |
| Front position lamp|s| not working |1.1.A.3b| | 3 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |