| Most common failures | No# failures |
|---|
| Registration plate issues | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Headlamp aim out of alignment | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Horn not working |1.7.3a| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front Brake caliper|s| insecure |3.2.A1j| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Position lamp switch insecure |1.1.4b| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Nearside Front Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front Upper Indicator switch insecure |1.5.4| | 1 |
| Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Rear Position lamp adversely affected by the operation of another lamp stop light (4.2.3 (b)) | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp affected by the operation of another lamp very dim when rear light on. |1.3.2| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Upper Brake component insecure resavior (1.1.21 (c)) | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Offside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Front position lamp obscured more than 50% |1.1.1d| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Nearside Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Brake component defective due to a deliberate modification which significantly reduces the original strength front brake lever |3.1.5| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 1 |
| Offside Side repeater not working (4.4.1 (a) (ii)) | 1 |
| Nearside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 1 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 1 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 1 |
| Windscreen wiper does not clear the windscreen effectively | 1 |
| Windscreen wiper not working only working on position one (3.4 (a)) | 1 |
| Nearside Rear Braking system leaking |3.6.A.1| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected steering head bearings tight |2.2.2 |f| |ii|| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Centre Front Direction indicator not working |1.5.1c| | 1 |
| Offside Outer Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |