| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 15 |
| Rear reflector missing |4.8.2 |a| |ii|| | 11 |
| Registration plate issues | 10 |
| Headlamp aim out of alignment | 10 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Horn not working (7.7 (a)) | 6 |
| Horn not working |7.7 |a| |ii|| | 5 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 5 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 3 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 2 |
| Offside Rear Footrest missing |6.2.12 |a|| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Wheel spoke excessively loose (5.2.2 (d)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Exhaust system insecure (6.1.2 (a)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Stop lamp not working control 1 |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working Not working when applying rear brake |4.3.1 |a| |ii|| | 1 |
| Rear Suspension component pin or bush excessively worn swinging arm bushes. |5.3.4 |a| |i|| | 1 |
| Nearside Front Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Handlebar retaining device loose |2.2.1 |b| |i|| | 1 |
| Handlebar excessively deformed |2.2.1 |c| |i|| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear Wheel spoke excessively loose |5.2.2 |d|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Offside Front Position lamp not working |4.2.1 |a|| | 1 |
| Front Shock absorber has negligible damping effect Front suspension has negligible damping |5.3.2 |b|| | 1 |
| Engine mounting/bracket excessively loose Lower bolt |6.1.8 |a| |ii|| | 1 |
| Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Wheel spoke excessively bent Two spokes |5.2.2 |d|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Wheel bearing rough when rotated Side car |5.1.3 |b| |i|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Direction indicator adversely affected by the operation of another lamp and rear |4.4.3 |b|| | 1 |
| Offside Front Direction indicator adversely affected by the operation of another lamp and rear |4.4.3 |b|| | 1 |
| Stop lamp not working rear brake |4.3.1 |a| |ii|| | 1 |
| Drive chain worn to excess seized links etc |6.1.7 |c| |i|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Rear reflector missing FITTED DURING TEST (4.8.2 (a) (ii)) | 1 |
| Offside Front Brake master cylinder insecure TIGHTENED DURING TEST (1.1.10 (c)) | 1 |
| Rear Wheel spoke excessively loose all spokes (5.2.2 (d)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake grabbing severely lever dry (1.2.1 (c)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced (6.1.1 (b) (ii)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Nearside Front Position lamp missing sidecar front position lamp (4.2.1 (a)) | 1 |
| Throttle operating incorrectly rpm increases when turned right (6.2.7 (a) (i)) | 1 |
| Nearside Position lamp showing red light to the front (4.2.3 (a) (ii)) | 1 |
| Offside Position lamp showing red light to the front (4.2.3 (a) (ii)) | 1 |
| Offside Rear Upper Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Offside Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure clutch control (6.1.1 (b) (i)) | 1 |
| Offside Motorcycle structure is so deformed it is likely to adversely affect braking or steering handlebar bent (6.1.1 (a) (ii)) | 1 |
| Fuel hose leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Nearside Front Footrest insecure securing nut loose. (6.2.12 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake pedal so insecure that the brake cannot be readily applied brake pivot mount,weld broken away from frame (1.1.2 (e) (ii)) | 1 |
| Drive chain sprocket excessively loose Cush drive worn (6.1.7 (c) (i)) | 1 |
| Suspension component attachment bracket/mounting likely to fail Rear swingarm is noisy in operation and partially seized, does not return to full travel (5.3.3 (b) (ii)) | 1 |
| Horn not working button jammed (7.7 (a)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Headlamp not working on main beam INDICATOR MAKING HEADLIGHT FLICKER (4.1.1 (a) (ii)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls not working off front brake (4.3.2 (a) (iii)) | 1 |