| Most common failures | No# failures |
|---|
| Registration plate issues | 12 |
| Headlamp aim out of alignment | 9 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear Wheel spoke cracked. |4.2.1b| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Fuel cap leaking fitted new seal. |6.1.3 |b| |i|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Stop lamp light intensity significantly reduced |4.3.3 |a| |ii|| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Centre Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Front position lamp incorrect colour incorrect colour |1.1.2a| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Front Shock absorber has negligible damping effect Front forks seized. No suspension or damping effect (5.3.2 (b)) | 1 |
| Exhaust is leaking and excessively noisey (7.1.1b) | 1 |