| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 16 |
| Headlamp aim out of alignment | 12 |
| Drive chain worn to excess |6.2.1e| | 12 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Registration plate issues | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Drive chain excessively tight |6.2.1d| | 6 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 6 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 4 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Headlamp insecure |1.2.3b| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Exhaust mounting missing |7.1.1c| | 2 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Direction indicator insecure |1.5.3b| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Offside Front Footrest missing |6.2.1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Lower Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Brake hose which buldges |3.2.B4| | 1 |
| Front Brake pipe excessively chafed |3.2.B2a| | 1 |
| Front Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Upper Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Nearside Front Lower Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Brake master cylinder insecurely mounted rear brake mounting fractured |3.2.B1a| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Direction indicator insecure |1.5.3b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Brake pedal insecure |3.1.2a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp switch faulty |1.2.4| | 1 |
| Nearside Front Headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Offside Motorcycle structure cracked |6.1.1a| | 1 |
| Upper Fuel hose leaking |7.2.1a| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Centre Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Fuel system component insecure tank |7.2.1b| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts insecue |3.2.B2c| | 1 |
| Rear suspension bearing has excessive free play suspension linkage |2.4.A2a|i|| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Inner Rear Lower Drive chain worn to excess |6.2.1e| | 1 |
| Centre Rear Lower Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Handlebar retaining device missing (2.2.1 (b) (i)) | 1 |