| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 20 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Registration plate issues | 7 |
| Horn not working |1.7.3a| | 5 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Nearside Rear Footrest missing |6.2.1a| | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| 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 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Drive chain fouling another component |6.2.1d| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort Heavy runout on discs (1.2.1 (e)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake component insecure Locking device. Pedal to master cylinder missing |1.1.21 |c|| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front suspension assembly component missing r/h lower clamp bolt |2.3.1| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Offside Footrest missing |6.2.1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Brake hose fouling |3.2.B3b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Centre Rear Lower Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Offside Front Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Fuel cap mounting flange/sealing method defective |7.2.2c| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear 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| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Rear Wheel more than one fixing missing Split pin missing (5.2.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Fuel pipe leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Shock absorber has a serious fluid leak front left fork leaking from anti dive unit (5.3.2 (b)) | 1 |
| Front Shock absorber has negligible damping effect front forks not damping (5.3.2 (b)) | 1 |
| Front Brake disc contaminated front left disc contaminated from anti dive unit (1.1.14 (b)) | 1 |
| Rear Brake component inadequately mounted rear pad clip touching disc (1.1.21 (c)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Suspect stuck on (4.3.2 (a) (iii)) | 1 |