| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 24 |
| Headlamp aim out of alignment | 13 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 11 |
| Registration plate issues | 8 |
| Registration plate lamp issues | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Fuel hose leaking |7.2.1a| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Central Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing Broken steering lock |2.2.1a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Fuel system component leaking Tap area |7.2.1a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Position lamp lens seriously defective (4.2.1 (b)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake component leaking fluid |3.2.B4| | 1 |
| Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Fuel system component leaking tap (6.1.3 (b) (i)) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front 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 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Central Front Exhaust has part of the system missing clamp missing |7.1.1a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Drive chain excessively tight |6.2.1d| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Motorcycle structure cracked |6.1.1a| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |