| Most common failures | No# failures |
|---|
| Registration plate issues | 20 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Headlamp aim out of alignment | 6 |
| Horn missing |1.7.1| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Horn not working |1.7.3a| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Rear Wheel spoke excessively loose |4.2.1b| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Stop lamp missing |1.3.3a| | 2 |
| Front Horn missing |1.7.1| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Horn not working missing? (7.7 (a)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Nearside Direction indicator missing |1.5.1a| | 1 |
| Offside Direction indicator missing |1.5.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Rear Stop lamp missing |4.3.1 |a| |ii|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Shock absorber has an excessively worn bush rear lower shock bush (5.3.2 (c)) | 1 |
| Registration plate lamp issues | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Stop lamp not working HAND LEAVER (4.3.1 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on main beam MISSING (4.1.3 (b)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Brake pedal insecure rear brake pedal pivot bolt split pin missing (1.1.2 (e) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Wheel spoke excessively loose spokes |4.2.1b| | 1 |
| Front mudguard can easily contact any fixed point of the motor bicycle. |2.3.7| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Stop lamp showing white light to the rear (4.3.3 (a) (ii)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 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 |
| Direction indicator missing |1.5.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Front Stop lamp missing (4.3.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Position lamp light intensity significantly reduced |4.2.3 |a| |ii|| | 1 |
| Stop lamp light intensity significantly reduced |4.3.3 |a| |ii|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |