| Most common failures | No# failures |
|---|
| Registration plate issues | 71 |
| Headlamp aim out of alignment | 69 |
| Rear reflector on motorcycle missing |1.4.1| | 45 |
| Registration plate lamp issues | 37 |
| Rear reflector missing (4.8.2 (a) (ii)) | 27 |
| Rear reflector missing |4.8.2 |a| |ii|| | 13 |
| Horn not working |1.7.3a| | 13 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 9 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 8 |
| Horn not working (7.7 (a) (ii)) | 8 |
| Horn not working |7.7 |a| |ii|| | 7 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 7 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Rear Brake excessively binding (1.2.1 (f)) | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 5 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Nearside Rear Direction indicators not working |1.5.1c| | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| All direction indicators not working (4.4.1 (a) (ii)) | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| 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| | 4 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Footrest missing (6.2.12 (a)) | 3 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 3 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Brake excessively binding |1.2.1 |f|| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Horn control not functioning. |1.7.2b| | 2 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Stop lamp remains on when the brakes are released | 2 |