| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 21 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 21 |
| Headlamp aim out of alignment | 19 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 18 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 17 |
| Registration plate issues | 14 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 14 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 13 |
| Stop lamp remains on when the brakes are released | 12 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 12 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 10 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 10 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 9 |
| Horn not working (7.7 (a) (ii)) | 8 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 8 |
| Riders seat insecure (6.2.5 (a) (ii)) | 8 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 7 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 7 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 6 |
| Horn not working |7.7 |a| |ii|| | 6 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 6 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 6 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Rear Position lamp not working (4.2.1 (a)) | 6 |
| Horn not working (7.7 (a)) | 6 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 5 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 5 |
| Front Suspension component modified so the suspension is inoperative (5.3.3 (c) (ii)) | 5 |
| Rear Brake excessively binding (1.2.1 (f)) | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 5 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 4 |
| Front Suspension component modified so the suspension is inoperative |5.3.3 |c| |ii|| | 4 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Exhaust system insecure (6.1.2 (a)) | 4 |
| Front brake disc in such a condition that it is seriously weakened | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 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 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 4 |
| Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 3 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 3 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 3 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Horn not working |1.7.3a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 2 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Rear Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 2 |
| Front Suspension component mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 2 |
| Brake performance not tested (1.2.1 (g)) | 2 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |