| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 25 |
| Rear reflector missing (4.8.2 (a) (ii)) | 11 |
| Horn not working (7.7 (a)) | 8 |
| Registration plate issues | 7 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Registration plate lamp issues | 4 |
| Offside Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 4 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Nearside Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Nearside Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 2 |
| Offside Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 2 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Fuel cap ineffective seal missing (6.1.3 (b) (i)) | 1 |
| Steering operation restricted in free movement from lock to lock front mudguard mounts completely damaged and rubbing causing restricted movement (2.1.4 (c)) | 1 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Front Brake cylinder operating mechanism has excessive travel Front brake excessively spongy (1.1.16 (e) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Brake drum significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Horn sound not in accordance with requirements button sticking on (7.7 (c)) | 1 |
| Front Brake lagging in operation (1.2.1 (d)) | 1 |
| Rear Brake cable damaged (1.1.15 (a)) | 1 |
| Fuel cap leaking No fuel cap seal (6.1.3 (b) (i)) | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Stop lamp not working control 1(front) (4.3.1 (a) (ii)) | 1 |
| Front Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Headlamp aim unable to be tested Loose lamp not fixed in place. (4.1.2 (b)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Offside Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Central Front Motorcycle structure has a fracture which is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Steering headbearing excessively stiff or notchy excessively notchy (2.2.2 (f) (i)) | 1 |
| Offside Rear Road spring so insecure that control of the motorcycle is likely to be adversely affected (5.3.1 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls front control inoperative (4.3.2 (a) (iii)) | 1 |
| Exhaust has a major leak of exhaust gases front pipe area (6.1.2 (a)) | 1 |
| Lower Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced (6.1.1 (c) (i)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |