| Most common failures | No# failures |
|---|
| Registration plate issues | 116 |
| Rear reflector on motorcycle missing |1.4.1| | 39 |
| Headlamp aim out of alignment | 27 |
| Rear reflector missing (4.8.2 (a) (ii)) | 16 |
| Horn not working |1.7.3a| | 12 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 11 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| 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)) | 10 |
| Registration plate lamp issues | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 8 |
| Horn not working (7.7 (a) (ii)) | 7 |
| 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| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 6 |
| Rear reflector missing |4.8.2 |a| |ii|| | 6 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 5 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| 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 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Stop lamp remains on when the brakes are released | 3 |
| Horn not working (7.7 (a)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Rear reflector on motorcycle dirty and function impaired |1.4.2a| | 2 |
| Rear Lower Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 2 |
| Rear Shock absorber has an excessively worn bush |5.3.2 |c|| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| 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) | 2 |