| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 23 |
| Rear reflector missing (4.8.2 (a) (ii)) | 21 |
| Registration plate lamp issues | 16 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 14 |
| Registration plate issues | 10 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 7 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 6 |
| Stop lamp remains on when the brakes are released | 6 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Horn not working (7.7 (a)) | 3 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear Direction indicator obviously incorrectly positioned less than 180 mm between lenses (4.4.3 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Central Rear Rear reflector missing No reflector fitted (4.8.2 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy notchy head races (2.2.2 (f) (i)) | 1 |
| Central Front Headlamp aim projected beam image obviously incorrect No obvious beam pattern (4.1.2 (c)) | 1 |
| Nearside Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Brake pedal pivot excessively tight (1.1.1 (a)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Offside Front Lower Footrest missing (6.2.12 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Front Headlamp aim projected beam image obviously incorrect LED BULB (4.1.2 (c)) | 1 |
| Footrest missing Both Passenger (6.2.12 (a)) | 1 |
| Rear Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Front Brake hose connection leaking (1.1.12 (c)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Nearside Lower Steering operation linkage fouling when handlebars turned from lock to lock steering stop missing (2.1.4 (a)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Suspension component mounting has an unsafe modification swing arm spindle nut missing (5.3.3 (c) (i)) | 1 |
| Rear Lower Suspension component pin or bush excessively worn excessive freeplay in lower shock bush (5.3.4 (a) (i)) | 1 |
| Brake fluid contaminated brake fluids very dark (1.8 (a)) | 1 |
| Offside Front Footrest missing (6.2.12 (a)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Footrest insecure (6.2.12 (a)) | 1 |
| Rear Brake component insecure (1.1.21 (c)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Steering headbearing has excessive wear or free play Top nut was loose (2.2.2 (f) (i)) | 1 |
| Nearside Lower Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Drive chain excessively tight slightly tight with no weight on, excessively tight with rider in position (6.1.7 (k) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect Bulb mounted upside down (4.1.2 (c)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition std silencer fitted time test. (8.1.1 (a)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |