| Most common failures | No# failures |
|---|
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 51 |
| Rear reflector missing (4.8.2 (a) (ii)) | 39 |
| Registration plate issues | 31 |
| Registration plate lamp issues | 28 |
| Rear reflector missing |4.8.2 |a| |ii|| | 25 |
| Headlamp aim out of alignment | 24 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 23 |
| Stop lamp remains on when the brakes are released | 20 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 15 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 13 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 13 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 11 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 9 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 8 |
| Horn not working (7.7 (a)) | 8 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 7 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 7 |
| 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)) | 7 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 6 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 6 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 5 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| 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 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 4 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 4 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 3 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Brake lagging in operation (1.2.1 (d)) | 3 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 3 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 3 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 3 |
| Brake performance unable to be tested (1.2.1 (g)) | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Brake performance not tested (1.2.1 (g)) | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |