| Most common failures | No# failures |
|---|
| Registration plate issues | 18 |
| Headlamp aim out of alignment | 15 |
| Horn not working |1.7.3a| | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 11 |
| Registration plate lamp issues | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| 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 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Front Headlamp aim beam image too far to the right |1.6.4| | 1 |
| Offside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Footrest insecure |6.2.12 |a|| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Rear Brake component is fractured |3.1.5| | 1 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Front Horn not working |7.7 |a| |ii|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake master cylinder reservoir cap missing |1.1.10 |e|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Offside Rear Brake linkage excessively damaged |3.2.A1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle affected by steering on full lock (6.2.7 (a) (ii)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Rear wheel rotation likely to be impeded rear hugger insecure |6.2.1b| | 1 |
| Headlamp missing |1.2.3a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working when operated on rear brake pedal (4.3.1 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Lower Suspension arm pin or bush excessively worn rear link and swinging arm to link (5.3.4 (a) (i)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |