| Most common failures | No# failures |
|---|
| Registration plate issues | 11 |
| Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Stop lamp remains on when the brakes are released | 7 |
| Headlamp aim out of alignment | 7 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Registration plate lamp issues | 2 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 2 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake caliper operating mechanism has excessive travel (1.1.16 (e) (i)) | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Offside Rear Brake master cylinder reservoir cap missing |1.1.10 |e|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Nearside Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Nearside Front Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Exhaust markings indicating not for road use or similar wording |6.1.2 |c|| | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Offside Rear Direction indicator not working bulb (4.4.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |