| Most common failures | No# failures |
|---|
| Registration plate issues | 13 |
| Headlamp aim out of alignment | 13 |
| Headlamp aim beam image kick up to the offside |1.6| | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Indicator tell tale not operating correctly |1.5.2| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Wheel fractured significantly reducing the original strength |4.2.1a| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| 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| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Wheel corroded significantly reducing the original strength |4.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear Rear suspension component loose |2.4.A.1a| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Rear Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Central Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Central Rear Position lamp not working |4.2.1 |a|| | 1 |
| Registration plate lamp issues | 1 |
| Central Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Central Front Position lamp not working |4.2.1 |a|| | 1 |
| Central Rear Stop lamp with a multiple light source more than 1/2 not functioning |4.3.1 |a| |ii|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies switch wiring |1.3.1a| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Headlamp aim beam image kick up to the offside Headlamp lens masked to correct beam image kickup. |1.6| | 1 |
| Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |