| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 25 |
| Registration plate issues | 19 |
| Horn not working (7.7 (a) (ii)) | 9 |
| Rear Position lamp not working (4.2.1 (a)) | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Headlamp aim out of alignment | 5 |
| Rear reflector missing |4.8.2 |a| |ii|| | 5 |
| Horn not working (7.7 (a)) | 5 |
| Horn not working |7.7 |a| |ii|| | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 3 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Registration plate lamp issues | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Nearside All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Rear reflector missing New one fitted (4.8.2 (a) (ii)) | 1 |
| Stop lamp with a multiple light source more than 1/2 not functioning (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working Rear foot brake inop (4.3.1 (a) (ii)) | 1 |
| Offside Front Upper Horn not working (7.7 (a) (ii)) | 1 |
| Offside All direction indicators missing (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Rear Brake caliper insecure Main attachment bolt loose (1.1.16 (c) (i)) | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Shock absorber has an excessively worn bush rear shock linkage (5.3.2 (c)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Lower Suspension arm attachment bracket/mounting insecure Lower mounting bolt loose (5.3.3 (a) (i)) | 1 |
| Rear Shock absorber has an excessively worn bush lower shock linkage bearing (5.3.2 (c)) | 1 |
| Steering headbearing has excessive wear or free play slight free play (2.2.2 (f) (i)) | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush suspension linkage bearings (5.3.2 (c)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Offside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |