| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 26 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Stop lamp not working (4.3.1 (a) (ii)) | 10 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 7 |
| Registration plate issues | 7 |
| Stop lamp remains on when the brakes are released | 7 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Horn not working (7.7 (a)) | 6 |
| Rear Position lamp not working (4.2.1 (a)) | 5 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Registration plate lamp issues | 5 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Brake disc insecure (1.1.14 (a) (ii)) | 2 |
| Headlamp aim not tested (4.1.2 (b)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Nearside Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Rear Brake disc insecure PLAY IN DISC BOBBINS (1.1.14 (a) (ii)) | 1 |
| Nearside Front All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Nearside Rear All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Offside Front Steering linkage locking device missing spindle locking device missing (2.1.3 (d)) | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Front Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Fuel hose damaged (6.1.3 (c) (ii)) | 1 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Nearside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 1 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Central Front Brake pipe at imminent risk of failure or fracture wiring loom rubbing through on brake pipe on headstock,risk of short ircuit melting hole in brake pipe (1.1.11 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake effort inadequate at a wheel when reaching lockout efficiency drops (1.2.1 (a) (i)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Shock absorber has negligible damping effect restricted movement (5.3.2 (b)) | 1 |
| Front Suspension arm corroded and seriously weakened (5.3.3 (b) (i)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork (5.3.2 (b)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Stop lamp not working BRAKE LIGHT NOT WORKING OFF FRONT OR REAR BRAKE (4.3.1 (a) (ii)) | 1 |
| Brake servo defective or ineffective (1.1.10 (a) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake caliper insecure Bolt loose! (1.1.16 (c) (i)) | 1 |
| Brake pipe connection leaking brake fluid leaking from hose junction at front of head stock. (1.1.11 (b)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Front Brake disc significantly and obviously worn Carrier bobbin/fasteners/springs (1.1.14 (a) (i)) | 1 |
| Nearside All direction indicators not working Front and rear (4.4.1 (a) (ii)) | 1 |
| Offside Front Upper Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Central Front Lower Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Central Rear Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Headlamp light intensity severely reduced Dip beam (4.1.4 (a)) | 1 |
| Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort 7 Squares (1.2.1 (e)) | 1 |
| Stop lamp not working not operating using rear brake pedal (4.3.1 (a) (ii)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Headlamp aim projected beam image obviously incorrect Main Beam (4.1.2 (c)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Suspension arm ball joint excessively worn rear wheel mounting pivot (5.3.4 (a) (i)) | 1 |
| Offside Front Brake disc significantly and obviously worn front disc disc has excessive movement (1.1.14 (a) (i)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Rear stop light not working (4.3.2 (a) (iii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort 8 Squares (1.2.1 (e)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort 7 Squares (1.2.1 (e)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock steering stop tab on yokes broken (2.1.4 (b)) | 1 |
| Exhaust system insecure Rear mounting missing (6.1.2 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |