| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Stop lamp remains on when the brakes are released | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Registration plate issues | 3 |
| All position lamps not working (4.2.1 (a)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Rear Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Brake component inadequately mounted off side front flexible hose unsupported and likely to cause fracture of metal brake pipe. (1.1.21 (c)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Rear Brake pedal has inadequate reserve travel (3.1.3b) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Footrest insecure (6.2.12 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Offside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Front Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear Direction indicator adversely affected by the operation of another lamp both (4.4.3 (b)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Front Wheel has bolts/rivets missing or loose to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (e) (ii)) | 1 |
| Steering operation restricted in free movement from lock to lock Very stiff operation of steering from lock to lock (2.1.4 (c)) | 1 |
| Offside Front Shock absorber has a serious fluid leak O/S front fork leg (5.3.2 (b)) | 1 |
| Central Front Fuel hose leaking (6.1.3 (b) (i)) | 1 |
| Rear Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |