| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Registration plate issues | 8 |
| Steering headbearing has excessive free play |2.2.2| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Riders seat insecure |6.2.1a| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| 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 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Riders seat insecure |6.2.1a| | 2 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Nearside Position lamp switch insecure |1.1.4b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Direction indicator missing |1.5.1a| | 1 |
| Offside Direction indicator missing |1.5.1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Offside Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake hose fouling |3.2.B3b| | 1 |
| Rear Brake component has an inadequate repair |3.1.5| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface reflective tape fitted |4.8.1 |a| |ii|| | 1 |
| Front All direction indicators obviously incorrectly positioned less than 300mm apart |4.4.3 |a|| | 1 |
| Rear All direction indicators obviously incorrectly positioned less than 240mm apart |4.4.3 |a|| | 1 |
| Steering operation impeded by a fairing fairing insecure |2.1.4 |e|| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Footrest insecure |6.2.1a| | 1 |
| Offside Motorcycle structure cracked |6.1.1a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Rear Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake pedal mounting cracked . |3.1.2c| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front brake light switch not working (4.3.2 (a) (iii)) | 1 |