| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 77 |
| Registration plate issues | 72 |
| Headlamp aim out of alignment | 57 |
| Rear reflector missing (4.8.2 (a) (ii)) | 16 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 11 |
| Registration plate lamp issues | 11 |
| 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| | 9 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 9 |
| Front wheel bearings are excessively rough |2.3.5b| | 8 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Rear reflector missing |4.8.2 |a| |ii|| | 7 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Headlamp aim beam image kick up to the offside |1.6| | 6 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Horn not working |1.7.3a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Offside Steering lock stop maladjusted |2.1.3| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Steering lock stop maladjusted |2.1.3| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| 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 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Drive chain sprocket excessively loose sprocket bolt loose |6.1.7 |c| |i|| | 2 |
| Brake performance not tested |1.2.1 |g|| | 2 |
| Rear Brake grabbing severely |1.2.1 |c|| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |