| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Brake locking device missing |3.2.A1e| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Brake component leaking fluid |3.2.B4| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Rear Brake component is severely distorted |3.1.5| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear mono-shock pivot seized |2.4.B.4| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front All direction indicators not working both sides (4.4.1 (a) (ii)) | 1 |
| Rear All direction indicators not working both sides (4.4.1 (a) (ii)) | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Offside Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Front Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Registration plate issues | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride split pin missing rear brake torque arm |6.2.1h| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride split link retaining clip incorrectly fitted drive chain |6.2.1h| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear suspension bush has excessive free play (2.4.A2a(i)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Offside Rear Direction indicator not working (1.5.1c) | 1 |
| Brake reaction bracket insecure (3.2.A1j) | 1 |
| Offside Rear Rear reflector on motorcycle incorrectly positioned (1.4.2d) | 1 |