| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 6 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Offside Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake grabbing severely |1.2.1 |c|| | 1 |
| Rear Brake clevis joint insecure |1.1.15 |c|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Fuel cap leaking |6.1.3 |b| |i|| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Rear suspension component excessively corroded. swing arm |2.4.A.1a| | 1 |
| Rear Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |