| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 11 |
| Headlamp aim out of alignment | 10 |
| Registration plate issues | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Horn not working |1.7.3a| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Horn is not continous or uniform |1.7.3c| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Upper Direction indicators not working |1.5.1c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 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 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Upper Front position lamp missing |1.1.1a| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |