| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Direction indicator not working |1.5.1c| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Shock absorber has an excessively worn bush ENGINE MOUNTING HAS EXCESSIVE MOVEMENT |5.3.2 |c|| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |