| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 13 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Registration plate issues | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Roller brake test indicates a binding brake front brake binding excessively |3.3.A1a| | 1 |
| Stop lamp affected by the operation of another lamp bulb in wrong way round |1.3.2| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies not working |1.3.1a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Position lamp adversely affected by the operation of another lamp Side car |4.2.3 |b|| | 1 |
| Rear Direction indicator adversely affected by the operation of another lamp Side car |4.4.3 |b|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Position lamp light intensity significantly reduced |4.2.3 |a| |ii|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear reflector on sidecar missing |1.4.1| | 1 |
| Drive chain worn to excess tight spots in numerous linkages |6.2.1e| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Steering operation restricted in free movement from lock to lock fouling on right hand lock |2.1.4 |c|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Central Front Upper Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Brake lining(s) incorrectly mounted falling off (1.1.13 (c)) | 1 |
| Front Handlebar mounting insecure Handlebars loose, fouling tank on right lock. (2.2.1 (a) (i)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Position lamp not working Side Car Front Position Light (4.2.1 (a)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake back plate insecure (1.1.14 (d)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Stop lamp not working from control (4.3.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Exhaust silencer insecure End can welds have cracked. (8.1.1 (b) (i)) | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Horn not working Not working when lights are on (7.7 (a)) | 1 |
| Front Upper Brake hose excessively twisted Excessively kinked at master cylinder (1.1.12 (b) (ii)) | 1 |
| Offside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases Blowing at manifold (6.1.2 (a)) | 1 |
| Offside Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |