| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Registration plate issues | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 4 |
| Horn not working |1.7.3a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 3 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Rear Wheel corroded significantly reducing the original strength |4.2.1a| | 2 |
| Horn control defective |1.7.2a| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Brake lever attachment screws loose Lock nut missing |3.1.2b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Brake component leaking fluid |3.2.B4| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Wheel spoke excessively loose |4.2.1b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Riders seat insecure Bolt missing! |6.2.1a| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Sprocket lock tabs not locked over nut heads! |6.2.1h| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride split link circlip |6.2.1h| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Wheel fractured significantly reducing the original strength |4.2.1a| | 1 |
| Rear Wheel fractured significantly reducing the original strength |4.2.1a| | 1 |
| Front Wheel corroded significantly reducing the original strength |4.2.1a| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake pipe connection leaking union at caliper or hairline fracture of pipe |1.1.11 |b|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride rear spindle split pin |6.2.1h| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls control 1 (4.3.2 (a) (iii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Front Headlamp incorrect colour (4.1.4 (a)) | 1 |
| Central Rear Suspension component ball joint excessively worn lower shock bush worn excessively (5.3.4 (a) (i)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |