| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 12 |
| Rear reflector on motorcycle missing |1.4.1| | 11 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Registration plate issues | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Inner Rear Lower Rear wheel insecure |4.2.3b| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Front mudguard can easily contact the wheel |2.3.7| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Steering damper insecure (2.1.4 (d) (i)) | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Fuel tank leaking (6.1.3 (b) (i)) | 1 |
| Rear Brake pipe connection leaking REAR BRAKE LIGHT SWITCH LOOSE (1.1.11 (b)) | 1 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |