| Most common failures | No# failures |
|---|
| Registration plate issues | 14 |
| Headlamp aim out of alignment | 13 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 2 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Lower Rear mono-shock insecure |2.4.B.4| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Registration plate lamp issues | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear Brake pedal mounting insecure |3.1.2a| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Brake lever has insufficient reserve travel comes to grip (1.1.2 (a)) | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected very lose (2.2.2 (f) (ii)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Riders seat with a defective supporting structure |6.2.5 |a| |i|| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected |1.1.2 |b| |ii|| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Brake hose damaged | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Brake hose fouling |3.2.B3b| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| 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 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Drive chain excessively tight, so that it is likely to fail |6.1.7 |k| |ii|| | 1 |
| Nearside Obligatory mirror missing |8.1.1| | 1 |
| Offside Obligatory mirror missing |8.1.1| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Rear brake application uneven | 1 |
| Brake pipe union leaking fluid |3.2.B4| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Upper Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Central Front Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Front wheel bearings are excessively tight |2.3.5b| | 1 |
| All position lamps not working |1.1.A.3b| | 1 |
| Direction indicators not working |1.4.A.2c| | 1 |
| Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Front Headlamp not working on main beam |1.7.5a| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Upper Stop lamp not working tried to repair front brake switch but unable too. |4.3.1 |a| |ii|| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Rear wheel spindle loose |2.4.A.2b| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |