| Most common failures | No# failures |
|---|
| Registration plate issues | 16 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Headlamp aim out of alignment | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Rear position lamp does not illuminate immediately when it is switched on (1.1.3a) | 1 |
| Horn not working (1.7.3a) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Rear Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Offside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Rear Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Front Brake caliper insecure |1.1.16 |c| |i|| | 1 |
| 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| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Brake hose connection leaking (1.1.12 (c)) | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear suspension bearing has excessive free play Swing arm pivot |2.4.A2a|i|| | 1 |
| Rear reflector on motorcycle missing (1.4.1) | 1 |
| Front wheel bearings are excessively rough (2.3.5b) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Suspension arm pin or bush excessively worn Rear lower linkage front bush. (5.3.4 (a) (i)) | 1 |