| Most common failures | No# failures |
|---|
| Registration plate issues | 13 |
| Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Headlamp aim out of alignment | 8 |
| Horn not working |1.7.3a| | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Wheel spoke excessively loose 4spokes loose |4.2.1b| | 1 |
| Front Brake lever pivots excessively worn |3.1.3a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Registration plate lamp issues | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Central Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Drive chain sprocket worn to excess |6.1.7 |c| |i|| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear wheel bearings are excessively tight |2.4.A.2c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies dirty connection |1.3.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Brake cylinder leaking caliper bleed nipple weeping. (1.1.16 (b) (i)) | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Throttle operating incorrectly Revving up - Lock to Lock |6.2.7 |a| |i|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Exhaust has a major leak of exhaust gases Front pipe not seated in exhaust port (6.1.2 (a)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |