| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 112 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 40 |
| Registration plate issues | 25 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 20 |
| Horn not working |1.7.3a| | 18 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 17 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Steering headbearing has excessive free play |2.2.2| | 17 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Throttle operating incorrectly |6.2.1f| | 12 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 12 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 11 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 11 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 9 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 8 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Direction indicators not working |1.5.1c| | 7 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 7 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 6 |
| Offside Rear Direction indicator not working |1.5.1c| | 6 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 6 |
| Brake locking device missing |3.2.A1e| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 6 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 6 |
| Riders seat insecure |6.2.1a| | 5 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Nearside Rear Direction indicator not working |1.5.1c| | 5 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Fuel system component leaking |7.2.1a| | 5 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 5 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 4 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 4 |
| Front Steering headbearing has excessive free play |2.2.2| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Motorcycle structure excessively corroded |6.1.1a| | 4 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Headlamp insecure |1.2.3b| | 4 |
| Rear Brake locking device missing |3.2.A1e| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Nearside Rear Footrest insecure |6.2.1a| | 3 |
| Rear Brake locking device insecure |3.2.A1e| | 3 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 3 |
| Rear parking brake recording little or no effort | 3 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 3 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Rear Stop lamp not working |1.2.1b| | 3 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 3 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 3 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 3 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 3 |
| Nearside Footrest insecure |6.2.1a| | 3 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 3 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Registration plate lamp issues | 3 |
| Exhaust has part of the system missing |7.1.1a| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 2 |
| An item not tested |Manual| | 2 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 2 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear reflector on sidecar missing |1.4.1| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Lower Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Offside Lower Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Nearside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Rear Shock absorber likely to become detached (5.3.2 (a) (ii)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 2 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Front shock absorber leaking oil |9.2.7b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Lower Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 2 |
| Brake lever cannot be released smoothly |3.1.3d| | 2 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 2 |
| Nearside Steering lock stop ineffective |2.1.3| | 2 |
| Rear Brake pipe inadequately clipped |3.6.B.1| | 2 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Fuel system component insecure |7.2.1b| | 2 |
| Nearside Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Offside Footrest insecure |6.2.1a| | 2 |
| Stop lamp missing |1.2.1a| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Brake lever insecure (1.1.2 (e) (i)) | 2 |
| Rear Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |