| Most common failures | No# failures |
|---|
| Registration plate issues | 54 |
| Rear reflector missing (4.8.2 (a) (ii)) | 30 |
| Rear reflector on motorcycle missing |1.4.1| | 23 |
| Headlamp aim out of alignment | 22 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 22 |
| Registration plate lamp issues | 17 |
| Stop lamp remains on when the brakes are released | 13 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 13 |
| Rear reflector missing |4.8.2 |a| |ii|| | 12 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 10 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 8 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 6 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 6 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 6 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Horn not working |7.7 |a| |ii|| | 6 |
| Horn not working (7.7 (a)) | 5 |
| 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| | 5 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 5 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Rear reflector missing |4.8.2 |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)) | 5 |
| Horn not working |1.7.3a| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Rear Brake caliper operating mechanism has excessive travel (1.1.16 (e) (i)) | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 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|| | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 3 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Brake pedal has insufficient reserve travel |1.1.2 |a|| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |