| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Registration plate issues | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 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 Brake reaction bracket insecure |3.2.A1j| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 2 |
| Horn not working |1.7.3a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front Lower Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Nearside Rear Lower Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Offside Rear Lower Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Centre Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute Not flashing. |1.5.1c| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute Not flashing |1.5.1c| | 1 |
| Brake cylinder leaking hydraulic fluid Bleed nipple leaking. |3.2.B1e| | 1 |
| Nearside Front Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Centre Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Brake hose fouling |3.2.B3b| | 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 Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Centre Riders seat insecure |6.2.1a| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Offside Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Offside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Centre Fuel pipe leaking |7.2.1a| | 1 |
| Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Horn control defective |1.7.2a| | 1 |
| Front Horn missing |1.7.1| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Brake pedal attachment screws missing. |3.1.2b| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Nearside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Brake pipe excessively damaged |3.2.B2a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Central Front Horn missing |1.7.1| | 1 |
| Centre Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |