| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Registration plate issues | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 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 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Lower Shock absorber has an excessively worn bush bush (5.3.2 (c)) | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear Rear wheel bearings are excessively tight |2.4.A.2c| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Offside Rear Upper Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Offside Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |