| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 15 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 6 |
| Rear Position lamp not working (4.2.1 (a)) | 5 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 5 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Horn not working (7.7 (a)) | 4 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 2 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Registration plate issues | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Suspension arm attachment bracket/mounting damaged and seriously weakened engine/suspension mountings seriously weakened (5.3.3 (b) (i)) | 1 |
| Nearside Brake lever is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Steering linkage locking device ineffective when steering turned to the right lockstop is ineffective (2.1.3 (d)) | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Front Steering operation fouling on the fuel tank or bodywork on full lock lock stop bent (2.1.4 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Stop lamp not working by rear lever (4.3.1 (a) (ii)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Throttle operating incorrectly cable not attached at handle bar (6.2.7 (a) (i)) | 1 |
| Front Shock absorber has negligible damping effect no damping (5.3.2 (b)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Nearside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure body work (6.1.1 (b) (i)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Central Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Steering headbearing has excessive wear or free play Rusty and missing ball bearings. (2.2.2 (f) (i)) | 1 |
| Offside Front Brake master cylinder defective but brake still operating lever not smooth in movement (1.1.10 (b) (i)) | 1 |
| All position lamps light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Horn not working inoperative (7.7 (a)) | 1 |
| Exhaust silencer likely to become detached Exhaust has completely snapped close to the head of the engine (8.1.1 (b) (ii)) | 1 |