| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Rear reflector missing (4.8.2 (a) (ii)) | 14 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 9 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 8 |
| Registration plate lamp issues | 7 |
| Horn not working (7.7 (a)) | 7 |
| Registration plate issues | 7 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Nearside Front Footrest insecure (6.2.12 (a)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Fuel tank insecure (6.1.3 (a) (i)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Stop lamp not working control 2 rear brake (4.3.1 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Central Rear Lower Shock absorber has an excessively worn bush Rear shock mounting bush / bearing excessivly worn (5.3.2 (c)) | 1 |
| Wheel hub excessively worn Cush Drive rubbers have excessive play (5.2.1 (b) (i)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Rear wheel bearings have excessive free play (2.4.A.2c) | 1 |
| Throttle operating incorrectly (6.2.1f) | 1 |
| Nearside Handlebar handgrip not secure to handlebars. (2.1.1c) | 1 |
| Offside Handlebar handgrip not secure to handlebars. (2.1.1c) | 1 |
| Front Shock absorber has a serious fluid leak Fork seals leaking both (5.3.2 (b)) | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Brake pedal insecure retighten |1.1.2 |e| |i|| | 1 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Offside Front Throttle operating incorrectly Binding on full offside lock (6.2.7 (a) (i)) | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Valve stem seriously damaged Perished. (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged Perished (5.2.3 (j)) | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Rear All direction indicators obviously incorrectly positioned IN WITH BACK LIGHT AND TO CLOSE (4.4.3 (a)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface tape (4.8.1 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition (8.1.1 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak fork leaking (5.3.2 (b)) | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp Direction Indictors (4.3.3 (b)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak signs of fork oil on front disc (5.3.2 (b)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Stop lamp not working front switch (4.3.1 (a) (ii)) | 1 |
| Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Rear Brake rod insecure lock nut loose (1.1.15 (c)) | 1 |
| Offside Rear Brake component inadequately mounted Rear brake caliper mounting bracket fitted in the wrong position (1.1.21 (c)) | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Offside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator obviously incorrectly positioned minimum distance between lamps should be 180mm (4.4.3 (a)) | 1 |
| Stop lamp adversely affected by the operation of another lamp light output stolen for indicators (4.3.3 (b)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |