| Most common failures | No# failures |
|---|
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Brakes imbalanced across an axle | 4 |
| Brake hose excessively deteriorated | 4 |
| Windscreen wiper does not clear the windscreen effectively | 3 |
| Headlamp aim out of alignment | 3 |
| Registration plate lamp issues | 3 |
| Front brake application uneven | 2 |
| Horn not working |1.6.2a| | 2 |
| Nearside Front front brake binding |3.7.B.1| | 2 |
| Windscreen wiper not operating automatically when switched on |8.2.1b| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.6.G.1f| | 1 |
| Mechanical brake component has restricted free movement | 1 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Offside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Front Leaf spring shackle bracket loose |2.4.B.6a| | 1 |
| Offside front brake binding |3.7.B.1| | 1 |
| Offside Front Leaf spring saddle is moving relative to the spring |2.4.B.7a| | 1 |
| Offside Rear Brake linkage locking device missing |3.5.1l| | 1 |
| Nearside Front Leaf spring longitudinally displaced |2.4.B.1d| | 1 |
| Nearside Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Offside Rear Shock absorber has an excessively worn bush |2.7.4| | 1 |
| Offside Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Offside Front Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Offside Front Brake master cylinder fluid level below minimum level |3.6.G.1e| | 1 |
| Offside Front Brake master cylinder leaking hydraulic fluid |3.6.G.1f| | 1 |
| Offside Front front brake binding |3.7.B.1| | 1 |
| Brake lever mounting insecure |3.1.2a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Centre Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Front Front suspension assembly component loose |2.3.1| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Front Front wheel bearing rough when rotated |2.5.A.2| | 1 |
| Windscreen wiper blade insecure | 1 |
| Offside Front front brake recording little or no effort |3.7.B.5a| | 1 |
| Steering system has excessive free play detected at the steering wheel |steering box fitted| |2.2.A.1a| | 1 |
| Steering wheel retaining device insecure |2.1.6| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Offside Rear Stop lamp not working |1.2.1b| | 1 |
| Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Rear Braking system leaking |3.6.A.1| | 1 |
| Service brake is causing the vehicle to swerve to the offside |3.7.C.2| | 1 |
| Nearside Front Braking system leaking |3.6.A.1| | 1 |
| Offside Front Braking system leaking |3.6.A.1| | 1 |
| Offside Rear Braking system leaking |3.6.A.1| | 1 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Fuel pipe union leaking |7.2.3| | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Driver`s seat fore and aft adjustment mechanism not functioning as intended. |6.2.A.3| | 1 |
| Nearside Front Upper Suspension arm fractured |2.4.G.1| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Indicator tell tale missing |1.4.A.2a| | 1 |
| Offside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Nearside Rear front brake binding |3.7.B.1| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Fuel pipe union leaking |7.2.1a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Nearside Front Stub axle has excessive vertical movement between stub axle and axle beam (5.1.2 (c) (i)) | 1 |
| Offside Front Stub axle has excessive vertical movement between stub axle and axle beam (5.1.2 (c) (i)) | 1 |
| Offside Oil leaking excessively from engine (8.4.1 (a) (i)) | 1 |
| Parking (secondary brake) on a single line braking system imbalanced across an axle Axle 1 (1.3.1 (b) (i)) | 1 |