| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Registration plate lamp issues | 31 |
| Rear reflector missing (4.8.2 (a) (ii)) | 21 |
| Rear Position lamp not working (4.2.1 (a)) | 14 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 10 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Registration plate issues | 9 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 5 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 5 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Horn not working (7.7 (a)) | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| 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)) | 2 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Central Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear reflector missing Obstructed by L plate (4.8.2 (a) (ii)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Motorcycle structure joining/attachment plate or fastening insecure belly pan broken /not attached off side rear (6.1.1 (b) (i)) | 1 |
| Rear Brake disc significantly and obviously worn damaged due to lack of rear pads (1.1.14 (a) (i)) | 1 |
| Brake component inadequately mounted rear brake hose (1.1.21 (c)) | 1 |
| Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Offside Position lamp not working (4.2.1 (a)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Rear Wheel hub excessively worn Rear hub bearing worn (5.2.1 (b) (i)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Exhaust has a major leak of exhaust gases End can loose (6.1.2 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak Fork seal (5.3.2 (b)) | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Motorcycle structure has a fracture which is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear reflector missing Reflector obscured (4.8.2 (a) (ii)) | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure Front fairing (6.1.1 (b) (i)) | 1 |
| Rear Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Headlamp incorrect colour (4.1.4 (a)) | 1 |
| Brake performance not tested due to rear brake bind (1.2.1 (g)) | 1 |
| Rear Brake caliper leaking rear caliper contaminated in brake fluid (1.1.16 (b) (i)) | 1 |
| Rear Brake performance not tested rear brake excessive binding (1.2.1 (g)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Exhaust has a major leak of exhaust gases Exhaust Manifold Bolt Missing / Snapped (6.1.2 (a)) | 1 |
| Steering headbearing excessively stiff or notchy Excessive notch (2.2.2 (f) (i)) | 1 |
| Riders seat insecure bolts missing (6.2.5 (a) (ii)) | 1 |
| Front Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear 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)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Brake grabbing severely brake disc bent (1.2.1 (c)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Lower Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Offside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working NOT WORKING ON FRONT BRAKE (4.3.1 (a) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Headlamp insecure WATER IN LIGHT (4.1.1 (c)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Central Rear Stop lamp missing (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Position lamp likely to become detached Headlamp insecure (4.2.1 (c) (ii)) | 1 |