| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 15 |
| Rear reflector missing (4.8.2 (a) (ii)) | 12 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Registration plate issues | 5 |
| Registration plate lamp issues | 4 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Stop lamp not working foot brake (4.3.1 (a) (ii)) | 1 |
| Offside Front Upper Stop lamp not working FRONT BRAKE LIGHT NOT WORKING - LOOSE CONNECTION RE-FITTED TO CORRECT (4.3.1 (a) (ii)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure rear linkage bolts loose (5.3.3 (a) (i)) | 1 |
| Rear Upper Shock absorber insecurely attached shocker bolt loose (5.3.2 (a) (i)) | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Stop lamp not working Front brake control (4.3.1 (a) (ii)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Central Rear Upper Stop lamp not working front brake switch poor connections (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working Front brake operation (4.3.1 (a) (ii)) | 1 |
| Brake excessively binding front calipers binding |1.2.1 |f|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Suspension component pin or bush excessively worn bearing of suspension linkage. (dogbone) (5.3.4 (a) (i)) | 1 |
| Stop lamp emits other than a steady red light front operated (4.3.3 (a) (ii)) | 1 |
| Nearside Front Horn not working |7.7 |a| |ii|| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering broken steering lock |2.1.2a| | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |