| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 75 |
| Headlamp aim out of alignment | 56 |
| Stop lamp remains on when the brakes are released | 42 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 21 |
| Registration plate issues | 21 |
| Stop lamp not working (4.3.1 (a) (ii)) | 17 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 16 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 14 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 12 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 11 |
| Horn not working (7.7 (a) (ii)) | 8 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 7 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 6 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 6 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Offside Front Position lamp not working (4.2.1 (a)) | 6 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 6 |
| Riders seat insecure (6.2.5 (a) (ii)) | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Stop lamp not working |4.3.1 |a| |ii|| | 5 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 5 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 5 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 5 |
| Front Position lamp not working (4.2.1 (a)) | 5 |
| Front Position lamp not working Both (4.2.1 (a)) | 5 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 5 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 5 |
| Rear Position lamp not working (4.2.1 (a)) | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 4 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 4 |
| Front brake disc in such a condition that it is seriously weakened | 4 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 3 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Rear Stop lamp not working control (4.3.1 (a) (ii)) | 3 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 3 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Front Brake grabbing severely (1.2.1 (c)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Horn sound not in accordance with requirements (7.7 (c)) | 2 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 2 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Nearside Brake lever insecure (1.1.2 (e) (i)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 2 |
| Offside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 2 |
| Front Horn not working (7.7 (a)) | 2 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 2 |
| Riders seat insecure |6.2.5 |a| |ii|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 2 |