| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 71 |
| Registration plate lamp issues | 34 |
| Front Brake excessively binding (1.2.1 (f)) | 33 |
| Stop lamp remains on when the brakes are released | 30 |
| Registration plate issues | 19 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 18 |
| Front Brake excessively binding |1.2.1 |f|| | 18 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 9 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 9 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 6 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Headlamp insecure (4.1.1 (c)) | 5 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Riders seat insecure |6.2.5 |a| |ii|| | 5 |
| Riders seat insecure (6.2.5 (a) (ii)) | 5 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 5 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 5 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 4 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Horn not working (7.7 (a)) | 4 |
| Horn sound not in accordance with requirements (7.7 (c)) | 3 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 3 |
| Headlamp aim not tested (4.1.2 (b)) | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Horn not working (7.7 (a) (ii)) | 3 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 3 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 3 |
| Exhaust system insecure (6.1.2 (a)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 3 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 3 |
| Offside Front Position lamp not working |4.2.1 |a|| | 3 |
| Front Headlamp aim not tested (4.1.2 (b)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 2 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Central Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Offside Front Position lamp not working (4.2.1 (a)) | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Nearside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 2 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |