| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 12 |
| Drive chain excessively loose |6.2.1d| | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Headlamp aim beam image kick up to the offside |1.6| | 7 |
| Registration plate issues | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Upper Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Rear Footrest insecure |6.2.1a| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| An item not tested |Manual| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Centre Front Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Offside Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Lower Motorcycle structure cracked |6.1.1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Brake performance not tested |3.3| | 1 |
| Decelerometer brake test no brake control achieves an efficiency of 30% |3.3.E1a| | 1 |
| Decelerometer brake test neither brake control achieves an efficiency of 25% |3.3.E1c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Front wheel has a loose wheel bolt|s| |4.2.3a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Offside Front An item not tested |Manual| | 1 |
| Centre Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear suspension bush has excessive free play lower |2.4.A2a|i|| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride wheel spindle retaining bolt missing |6.2.1h| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride wheel spindle retaining bolt missing |6.2.1h| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Inner Front Lower Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp does not illuminate immediately a brake applies back brake |1.3.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies brake |1.3.1a| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Offside Front Direction indicator obscured |1.5.1a| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Front Riders seat insecure |6.2.1a| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |