| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 31 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 16 |
| Headlamp aim out of alignment | 16 |
| Stop lamp not working (4.3.1 (a) (ii)) | 14 |
| Stop lamp remains on when the brakes are released | 13 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 11 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Rear Position lamp not working (4.2.1 (a)) | 7 |
| Registration plate issues | 7 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 5 |
| Riders seat insecure (6.2.5 (a) (ii)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 5 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 4 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 3 |
| Front Position lamp not working Both (4.2.1 (a)) | 3 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 3 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Front Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 2 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Brake drum significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Offside Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Stop lamp not working switch faulty (4.3.1 (a) (ii)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Nearside Rear Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Brake lever has insufficient reserve travel Rear brake lever. (1.1.2 (a)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls does not illuminate when front brake is applied (4.3.2 (a) (iii)) | 1 |
| Rear Suspension arm pin or bush likely to become detached (5.3.4 (a) (ii)) | 1 |
| Rear Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Handlebar mounting so insecure that steering is adversely affected (2.2.1 (a) (ii)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar left hand grip is loose (2.2.1 (d) (ii)) | 1 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Fork yoke excessively deformed (2.2.2 (d) (i)) | 1 |
| Stop lamp not working control 2 (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls front brake switch replaced (4.3.2 (a) (iii)) | 1 |
| Central Front Lower Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls front brake not working (4.3.2 (a) (iii)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment back brake lever comes back to bar (1.1.15 (f)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake cable guide defective and affecting operation (1.1.15 (d)) | 1 |
| Stop lamp not working from front brake (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working from rear brake (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure center stand (6.1.1 (b) (i)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected Poss forks out of line (2.2.2 (f) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Headlamp aim not tested stuck on high beam (4.1.2 (b)) | 1 |
| Brake performance not tested hydraulic brake fluid leak contaminating the brakes (1.2.1 (g)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Brake disc significantly and obviously worn Front brake disc has excessive run out (1.1.14 (a) (i)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Upper Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering (6.1.1 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen Incorrect bulb fitted. (4.1.2 (a)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Rear Brake (4.3.2 (a) (iii)) | 1 |
| Offside Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Front Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |