| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 27 |
| Registration plate issues | 21 |
| Registration plate lamp issues | 13 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Front Brake disc|s| cracked |3.2.A1g| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Drive chain excessively loose |6.2.1d| | 5 |
| Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Headlamp aim beam image kick up to the offside |1.6| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 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| | 2 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition |8.1.1 |a|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| All direction indicators not working |4.4.1 |a| |ii|| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Front position lamp missing bulb |1.1.1a| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| All direction indicators missing |4.4.1 |a| |ii|| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Central Rear Lower Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| All direction indicators missing no indicators fitted |4.4.1 |a| |ii|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on replaced bulb |1.1.3a| | 1 |
| Rear Stop lamp not working rear switch |4.3.1 |a| |ii|| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Front Headlamp insecure |4.1.1 |c|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Nearside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear Brake pedal attachment screws loose |3.1.2b| | 1 |
| Brake locking device missing rear torque arm mount |3.2.A1e| | 1 |
| Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| An item not tested |Manual| | 1 |
| Front Direction indicator missing both front indicators are missing |1.5.1a| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Lower Brake locking device missing |3.2.A1e| | 1 |
| Brake performance not tested |3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Offside Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Central Front Lower Wheel hub excessively worn to much play in wheel hub or wheel bearings (5.2.1 (b) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Front All direction indicators light intensity significantly reduced (4.4.3 (a)) | 1 |
| Nearside Rear All direction indicators light intensity significantly reduced (4.4.3 (a)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Front Brake linkage has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |