| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 15 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Registration plate issues | 8 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Drive chain excessively loose |6.2.1d| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Horn not working (7.7 (a)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Rear Footrest insecure (6.2.1a) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn not working |1.7.3a| | 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 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Rear Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Brake lever insecure Locking device (1.1.2 (e) (i)) | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Front Direction indicator missing |1.5.1a| | 1 |
| Offside Front Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Direction indicator missing |1.5.1a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Direction indicator missing |1.5.1a| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Headlamp switch insecure |1.2.4| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Upper Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Offside Rear Lower Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Fuel system component leaking carb |7.2.1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel fractured |5.2.2 |a|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |