| Most common failures | No# failures |
|---|
| Registration plate issues | 20 |
| Headlamp aim out of alignment | 16 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Horn not working |1.7.3a| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Nearside Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Offside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Front Wheel bearing has excessive play xsplay in front wheel bearings |5.1.3 |a| |i|| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Throttle operating incorrectly sticking on rh full lock |6.2.1f| | 1 |
| Centre Front Upper Front position lamp missing |1.1.1a| | 1 |
| Centre Front Upper Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Gradient brake test indicates a binding brake |3.3.D1c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Rear Lower Brake rod insecure split pin missing out of brake rod clevis (1.1.15 (c)) | 1 |
| Central Front Lower Front wheel bearings have excessive free play front wheel spindle nut loose |2.3.5b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Registration plate lamp issues | 1 |
| Rear Direction indicators not working nearside and offside |1.5.1c| | 1 |
| Front Direction indicator missing nearside and offside |1.5.1a| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Stop lamp not working when front brake lever or foot brake pedal applied rear brake light not working. (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake hose excessively damaged brake flexy hose showing cords. (1.1.12 (b) (ii)) | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Stop lamp remains on when the brake is released front lever |1.3.1e| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Brake lever mounting cracked |3.1.2c| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Fuel pipe union leaking |7.2.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Fuel pipe union leaking |7.2.1a| | 1 |