| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Brake pipe excessively corroded | 1 |
| Nearside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Horn not working |1.7.3a| | 1 |
| Centre Rear Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp Obscured by rear lamp (4.3.3 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Registration plate issues | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |