| Most common failures | No# failures |
|---|
| Registration plate issues | 13 |
| Headlamp aim out of alignment | 13 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Wheel spoke excessively loose |4.2.1b| | 4 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Horn not working |1.7.3a| | 3 |
| Brake hose damaged | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Rear Drive chain worn to excess |6.2.1e| | 2 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| All direction indicators missing |4.4.1 |a| |ii|| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Rear position lamp damaged and function impaired Lens missing |1.1.1b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Stop lamp not working Front brake (4.3.1 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Central Rear Upper Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Brake hose excessively deteriorated | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Brake excessively binding (1.2.1 (f)) | 1 |
| Rear All direction indicators obviously incorrectly positioned Both indicators incorporated in rear light so not correctly set apart. (4.4.3 (a)) | 1 |
| 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)) | 1 |
| Nearside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Rear Lower Suspension rod attachment bracket/mounting insecure nut missing (5.3.3 (a) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Nearside Front Indicator switch insecure |1.5.4| | 1 |
| Offside Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear 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)) | 1 |
| Registration plate lamp issues | 1 |
| All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort disc warped (1.2.1 (e)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear |1.3.1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake pipe excessively damaged |3.2.B2a| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Drive chain excessively tight tight spot (6.1.7 (k) (i)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Direction indicator obviously incorrectly positioned all wired incorect (4.4.3 (a)) | 1 |
| Front Stop lamp not working Control (4.3.1 (a) (ii)) | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Stop lamp not working Front control. |4.3.1 |a| |ii|| | 1 |
| Brake performance not tested |3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear All position lamps not working tail light (4.2.1 (a)) | 1 |
| Central Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Wheel fixing missing |multiple fixings| |5.2.1 |a| |i|| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |