| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 5 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Registration plate lamp issues | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Front Shock absorber has a serious fluid leak Fork seal (5.3.2 (b)) | 1 |
| Stop lamp not working When front brake applied (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake component is severely distorted rear brake pedal |3.1.5| | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Chain guard insecure |6.1.7 |i|| | 1 |
| Front Lower Motorcycle structure has a fracture which is likely to adversely affect braking or steering fairing |6.1.1 |a| |ii|| | 1 |
| Front Hydraulic brake control feels spongy no reserve travel |3.1.4a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Stop lamp not working FOOT (4.3.1 (a) (ii)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Rear Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Central Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride CHAIN SPLIT LINK WRONG WAY |6.2.1h| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition BLOWING AT FRONT |7.1.2| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Front position lamp missing |1.1.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Rear mono-shock insecure |2.4.B.4| | 1 |
| Front Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |