| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Registration plate issues | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Brake hose damaged | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Stop lamp not working brake |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Stop lamp does not illuminate immediately a brake applies off front lever |1.3.1a| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride Chain tensioner locking nuts insecure |6.2.1h| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Front Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Suspension arm corroded and seriously weakened (5.3.3 (b) (i)) | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |