| Most common failures | No# failures |
|---|
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Offside Rear Exhaust excessively deteriorated |7.1.1a| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Centre Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Outer Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Centre Front Horn emits 2 or more alternating tones |1.7.3b| | 1 |
| Centre Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Centre Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Offside Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Centre Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Outer Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Outer Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| All direction indicators missing |4.4.1 |a| |ii|| | 1 |
| Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Headlamp aim out of alignment | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Wheel spoke excessively corroded |4.2.1b| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Brake cable excessively corroded |3.2.A1b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Nearside Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Registration plate issues | 1 |
| Rear suspension has a modification which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |