| Most common failures | No# failures |
|---|
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Headlamp aim out of alignment | 3 |
| Horn not working |1.7.3a| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake cable badly frayed |3.2.A1b| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Rear Chain guard insecure |6.2.1c| | 1 |
| Brake cable badly frayed |3.2.A1b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Braking system does not have an approriate system/s fitted according to its age |3.1.1| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |