| Most common failures | No# failures |
|---|
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 28 |
| Stop lamp remains on when the brakes are released | 24 |
| Headlamp aim out of alignment | 16 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 8 |
| Registration plate issues | 7 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 7 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 6 |
| Horn not working (7.7 (a)) | 6 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 6 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 4 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 4 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 3 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Offside Rear 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 Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Rear Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy excessively notchy (2.2.2 (f) (i)) | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Nearside Front 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 |
| Rear Brake component insecure (1.1.21 (c)) | 2 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Offside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working Front and rear (4.3.1 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Offside Front Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Rear Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Central Front Lower Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Front Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock possible steering lock ? (2.1.4 (c)) | 1 |
| Brake disc fractured front disc
back disc (1.1.14 (a) (ii)) | 1 |
| Front Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected notchy (2.2.2 (f) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Steering linkage component deformed to the extent that steering is affected (2.1.3 (c) (ii)) | 1 |
| Fork yoke in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect Both (5.3.2 (b)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Registration plate lamp issues | 1 |
| Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Motorcycle structure has a fracture which is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Front Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Rear Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock handgaurds fouling on bodywork. (2.1.4 (c)) | 1 |
| Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working n.s.f o.s.f brake lever no stop lamp (4.3.1 (a) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort 30+kg (1.2.1 (e)) | 1 |
| Offside Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Central Rear Upper Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Central Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Stop lamp not working control1 (4.3.1 (a) (ii)) | 1 |
| Brake disc significantly and obviously worn Front Disc worn below minimum Thickness (1.1.14 (a) (i)) | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Stop lamp not working when operating front brake lever (4.3.1 (a) (ii)) | 1 |
| Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Wheel has bolts/rivets missing or loose to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (e) (ii)) | 1 |
| Rear Stop lamp not working control 2 (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Suspension component damaged and seriously weakened (5.3.3 (b) (i)) | 1 |
| Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy Notchy (2.2.2 (f) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake disc insecure (1.1.14 (a) (ii)) | 1 |