| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Registration plate issues | 6 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Horn not working |1.7.3a| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Rear parking brake recording little or no effort | 2 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Riders seat insecure |6.2.1a| | 1 |
| front brake binding |3.7.B.1| | 1 |
| Rear Brake rod excessively corroded and seriously weakened |3.5.1e| | 1 |
| Hazard warning lamps not fitted |1.4.B.1a| | 1 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Nearside front brake binding |3.7.B.1| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Fuel tank insecure |7.2.1| | 1 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 1 |
| Brake linkage has abnormal movement of levers indicating maladjustment |3.5.1f| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Rear brake binding | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Nearside Front 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 Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear spring worn and seriously weakened |2.4A1b|ii|| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear suspension component excessively corroded. Swinging arm |2.4.A.1a| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Brake hose excessively deteriorated | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Steering lock stop loose |2.1.3| | 1 |
| Offside Steering lock stop loose |2.1.3| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Offside Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Offside Rear Brake pedal insecure |3.1.2a| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front wheel spindle loose pinch bolt loose |2.3.3a| | 1 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |