| Most common failures | No# failures |
|---|
| Registration plate issues | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Headlamp aim out of alignment | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Nearside Rear Direction indicators not working |1.5.1c| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Riders seat insecure |6.2.1a| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear position lamp incorrect colour |1.1.2b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Direction indicators not working all 4 |1.5.1c| | 1 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Brake lever insecure |3.1.2a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Rear Built up wheel has a loose bolt/s |4.2.1c| | 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 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake lever pivot excessively tight |1.1.1 |a|| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Horn not working |1.7.3a| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake linkage clevis joint excessively worn |3.2.A1d| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake cable badly frayed |3.2.A1b| | 1 |
| Centre Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Brake lever is inoperative (3.1.3c) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. (3.3.C1b) | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Front Brake cable has a significantly damaged outer casing. |3.2.A1b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Steering linkage has excessive free play |2.2.2| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |