| Most common failures | No# failures |
|---|
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Headlamp aim out of alignment | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front suspension spring worn and seriously weakened |2.3.2b| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Stop lamp not working lever operation |4.3.1 |a| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Rear brake switch not working (4.3.2 (a) (iii)) | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Registration plate lamp issues | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride rear wheel nut missing |6.2.1h| | 1 |
| Rear Rear wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies R/H lever |1.3.1a| | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Central Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Brake pipe inadequately supported |3.2.B2b| | 1 |