| Most common failures | No# failures |
|---|
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 3 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Headlamp aim out of alignment | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Brake component insecure rear brake tourque arm |1.1.21 |c|| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Nearside Front Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Offside Front Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Front Brake locking device insecure |3.2.A1e| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Shock absorber has a serious fluid leak both forks |5.3.2 |b|| | 1 |
| Chain guard insecure |6.1.7 |i|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |