| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Headlamp aim out of alignment | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Brake rod excessively chafed Incorrectly routed |3.2.A1a| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Nearside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Nearside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Braking system does not have an approriate system/s fitted according to its age |3.1.1| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Registration plate issues | 1 |
| Front Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Rear Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Brake cable badly frayed |3.2.A1b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 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 |