| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 30 |
| Registration plate issues | 14 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| 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| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 4 |
| 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 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Horn not working |1.7.3a| | 3 |
| Registration plate lamp issues | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Horn not working (7.7 (a)) | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear All position lamps not working (4.2.1 (a)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Throttle operating incorrectly Sticking (6.2.7 (a) (i)) | 1 |
| Stop lamp not working front and rear (4.3.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Fuel cap ineffective fixing lug damage |6.1.3 |b| |i|| | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake component is severely distorted |3.1.5| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Offside Rear All direction indicators obviously incorrectly positioned |4.4.3 |a|| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Brake cable insecure | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear position lamp flickers when tapped lightly by hand |1.1.3c| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Riders seat insecure (6.2.1a) | 1 |
| Direction indicator missing (1.5.1a) | 1 |
| Front wheel bearings have excessive free play (2.3.5b) | 1 |
| Front wheel bearings are excessively rough (2.3.5b) | 1 |
| Front suspension assembly component excessively misaligned (2.3.1) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front position lamp does not illuminate immediately when switched on (1.1.3a) | 1 |
| Fuel cap sealing washer torn (7.2.2c) | 1 |
| Rear Brake pedal has inadequate reserve travel (3.1.3b) | 1 |
| Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Rear Wheel spoke cracked. |4.2.1b| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Nearside Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Nearside Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Braking system leaking |3.6.A.1| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Rear brake binding | 1 |
| Brake hydraulic reservoir fluid level below minimum level |3.6.G.1b| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Rear position lamp|s| incorrect colour |1.1.A.3e| | 1 |
| Horn not working |1.6.2a| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Stop lamp|s| not working for rear brake |4.3.1 |a| |ii|| | 1 |
| Rear Suspension arm attachment bracket/mounting insecure torque arm securing bolt loose (5.3.3 (a) (i)) | 1 |
| Centre Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Outer Front Upper Horn control defective |1.7.2a| | 1 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Offside Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Brakes imbalanced across an axle | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing top bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the wheel raised front top bearing |2.2.1b| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake rod has restricted free movement (1.1.15 (e)) | 1 |
| Offside Rear Lower Direction indicator not working OSR indictor not working (4.4.1 (a) (ii)) | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Fuel hose damaged (6.1.3 (c) (ii)) | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Stop lamp not working on foot pedal (4.3.1 (a) (ii)) | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |