| Most common failures | No# failures |
|---|
| Registration plate issues | 64 |
| Headlamp aim out of alignment | 54 |
| Rear reflector missing (4.8.2 (a) (ii)) | 40 |
| Rear reflector on motorcycle missing |1.4.1| | 25 |
| Rear reflector missing |4.8.2 |a| |ii|| | 16 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 11 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 10 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 10 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 10 |
| Stop lamp remains on when the brakes are released | 9 |
| Registration plate lamp issues | 9 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 8 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 8 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Horn not working (7.7 (a)) | 7 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 6 |
| Horn not working (7.7 (a) (ii)) | 6 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 5 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Horn missing |1.7.1| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 4 |
| Horn not working |1.7.3a| | 4 |
| 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|| | 4 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 3 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 3 |
| Headlamp aim not tested (4.1.2 (b)) | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 2 |
| Nearside Footrest insecure (6.2.12 (a)) | 2 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 2 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 2 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Stop lamp with a multiple light source more than 1/2 not functioning (4.3.1 (a) (ii)) | 2 |
| Rear Wheel spoke excessively loose |5.2.2 |d|| | 2 |
| Rear 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 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Brake caliper insecure (1.1.16 (c) (i)) | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |