| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 42 |
| Registration plate issues | 25 |
| Headlamp aim out of alignment | 23 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 20 |
| Registration plate lamp issues | 19 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 11 |
| 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)) | 10 |
| Rear Brake excessively binding (1.2.1 (f)) | 9 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 7 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 7 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 5 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 5 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 3 |
| Front Brake grabbing severely (1.2.1 (c)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Chain guard insecure (6.1.7 (i)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Rear 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)) | 2 |
| Offside Front Footrest insecure (6.2.12 (a)) | 2 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Front Horn not working (7.7 (a)) | 2 |
| Exhaust system insecure (6.1.2 (a)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Direction indicator obviously incorrectly positioned both (4.4.3 (a)) | 2 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Handlebar grip insecure to handlebar left grip loose (2.2.1 (d) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Front All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Front Brake lever pivot has excessive free play (1.1.1 (b)) | 1 |
| Drive chain so worn it is likely to fail seized links etc (6.1.7 (c) (ii)) | 1 |
| Front Direction indicator incorrect colour both (4.4.3 (a)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Front All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Front Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Offside Front Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Offside Front Footrest insecure bolt missing/snapped (6.2.12 (a)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 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 Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Brake component inadequately mounted (1.1.21 (c)) | 1 |
| Central Rear Upper Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls foot brake (4.3.2 (a) (iii)) | 1 |
| Offside Front Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Steering headbearing excessively stiff or notchy notchy (2.2.2 (f) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Rear Footrest missing Passenger footrest missing (6.2.12 (a)) | 1 |
| Offside Rear Footrest missing Passenger footrest missing (6.2.12 (a)) | 1 |
| Rear Drive chain sprocket worn to excess Teeth missing. (6.1.7 (c) (i)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Brake caliper inadequately mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Offside Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Footrest missing pillion (6.2.12 (a)) | 1 |
| Offside Footrest missing pillion (6.2.12 (a)) | 1 |
| Offside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls rear stop switch not operating (4.3.2 (a) (iii)) | 1 |
| Rear Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Offside Rear Brake pedal has insufficient reserve travel Brake pivot Interfering with exhaust (1.1.2 (a)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Rear Stop lamp not working rea brake pedal doesnt operate light (4.3.1 (a) (ii)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Rear Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Wheel bearing play so excessive it is likely to break up rear wheel bearings (5.1.3 (a) (ii)) | 1 |
| Rear Direction indicator obviously incorrectly positioned Both (4.4.3 (a)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Offside Front Upper Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Rear All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Stop lamp not working rear brake (4.3.1 (a) (ii)) | 1 |
| Rear Footrest missing both (6.2.12 (a)) | 1 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Front Footrest insecure broken, missing half its mount (6.2.12 (a)) | 1 |