| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 30 |
| Rear reflector missing (4.8.2 (a) (ii)) | 20 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Rear reflector missing |4.8.2 |a| |ii|| | 7 |
| Registration plate issues | 7 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Registration plate lamp issues | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Offside 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 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Central Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Brake disc contaminated fork oil |1.1.14 |b|| | 1 |
| Throttle operating incorrectly does not snap shut |6.2.7 |a| |i|| | 1 |
| Rear Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Front Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Nearside Front suspension assembly component loose |2.3.1| | 1 |
| Front Shock absorber has negligible damping effect stays down when depressed |5.3.2 |b|| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake switch disconnected |1.3.1a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Central Rear Upper Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear reflector on motorcycle missing new fitted |1.4.1| | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Brake grabbing severely Severe Judder (1.2.1 (c)) | 1 |
| Nearside Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake excessively binding caliper is binding (1.2.1 (f)) | 1 |
| Rear Valve stem seriously misaligned (5.2.3 (j)) | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening insecure gear selector rose joint obviously worn to excess. (6.1.1 (b) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Front Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |