| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Rear Position lamp not working (4.2.1 (a)) | 9 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 6 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 4 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Registration plate issues | 3 |
| Registration plate lamp issues | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Position lamp switch does not illuminate all position lamps with a single operation (4.2.2 (a)) | 2 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 2 |
| Steering operation restricted in free movement from lock to lock clutch cable fouling (2.1.4 (c)) | 2 |
| Brake component modification adversely affecting braking performance appears to be catching rear cable (1.1.21 (d) (ii)) | 1 |
| Stop lamp emits other than a steady red light emites indicator and rear light as well as brake light (4.3.3 (a) (ii)) | 1 |
| Brake cable damaged (1.1.15 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Stop lamp not working when you press rear brake stop lamp don,t work (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Suspension arm ball joint excessively worn swing arm (5.3.4 (a) (i)) | 1 |
| Nearside Suspension arm ball joint excessively worn swing arm (5.3.4 (a) (i)) | 1 |
| Rear Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Fuel hose so insecure there is a risk of fire (6.1.3 (a) (ii)) | 1 |
| Offside Steering operation restricted in free movement from lock to lock fouling brake hose (2.1.4 (c)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Throttle operating incorrectly cable locknut loose (6.2.7 (a) (i)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp not working on dipped beam Replaced Halogen (4.1.1 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Brake hose damaged and likely to fail |1.1.12 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Nearside Brake pedal pivot excessively worn (1.1.1 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Stop lamp switch with a delay in operation from rear brake, light does not illuminate until pedal fully pressed (4.3.2 (a) (ii)) | 1 |
| Brake pedal has insufficient reserve travel rear brake operation spongy (1.1.2 (a)) | 1 |
| Brake pedal pivot has excessive free play (1.1.1 (b)) | 1 |
| Brake fluid reservoir fluid not visible leaking from reservoir window (1.1.10 (d) (iii)) | 1 |
| All position lamps light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Front Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Central Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect kicks up to the right (4.1.2 (c)) | 1 |
| Drive chain sprocket worn to excess both (6.1.7 (c) (i)) | 1 |
| Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front Control (4.3.2 (a) (iii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Horn not working faulty (7.7 (a)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Wheel spoke excessively corroded (5.2.2 (d)) | 1 |