| Most common failures | No# failures |
|---|
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 18 |
| Headlamp aim out of alignment | 13 |
| Rear reflector missing (4.8.2 (a) (ii)) | 12 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 10 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 7 |
| Rear Position lamp not working (4.2.1 (a)) | 7 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 6 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Registration plate issues | 4 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 4 |
| Horn not working (7.7 (a)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Rear Brake lagging in operation (1.2.1 (d)) | 3 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Offside Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Brake pedal has insufficient reserve travel too much travel (1.1.2 (a)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls not operating from rear brake operation (4.3.2 (a) (iii)) | 1 |
| Rear Brake pedal has insufficient reserve travel rear brake not working, pedal operation shows no pressure (1.1.2 (a)) | 1 |
| Position lamp switch does not operate in accordance with the requirements (4.2.2 (a)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake performance unable to be tested REAR BRAKE NOT WORKING AT ALL (1.2.1 (g)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Brake performance unable to be tested (1.2.1 (g)) | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Front Brake cylinder insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Upper Fork yoke insecure top yoke nut was loose (2.2.2 (d) (i)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Throttle operating incorrectly Engine revs oscillating at tick over. (6.2.7 (a) (i)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Nearside Front Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| All direction indicators obviously incorrectly positioned ALL. (4.4.3 (a)) | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Front Brake master cylinder insecure (1.1.10 (c)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Registration plate lamp issues | 1 |
| Stop lamp with a multiple light source more than 1/2 not functioning (4.3.1 (a) (ii)) | 1 |
| Brake performance unable to be tested oil on disc & pads (1.2.1 (g)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Stop lamp not working Control switch (4.3.1 (a) (ii)) | 1 |
| Rear reflector missing OBSCURED. (4.8.2 (a) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel bleed brakes (1.2.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Outer Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Rear Drive chain horseshoe locking device incorrectly fitted wrong way round (6.1.7 (j) (i)) | 1 |
| Offside Front Upper Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Central Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Central Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Nearside Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Offside Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Forks in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Forks excessively deformed (2.2.2 (d) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect EUROPEAN HEADLIGHT FITTED. KICKUP TO THE RIGHT
TAPED DURING TEST (4.1.2 (c)) | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Front Brake excessively binding (1.2.1 (f)) | 1 |