| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Registration plate lamp issues | 6 |
| Registration plate issues | 6 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Headlamp aim out of alignment | 5 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 4 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock aftermarket handlebars fitted (2.1.4 (b)) | 1 |
| Direction indicator lens defective such that the emitted light is adversely affected Both rear winkers come on together (4.4.1 (b) (ii)) | 1 |
| Brake excessively binding rear brake (1.2.1 (f)) | 1 |
| Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Offside Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Shock absorber insecurely attached Mounting bolt securing nut lose (5.3.2 (a) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Exhaust system insecure SILENCER FOWLS ON BRACKET (6.1.2 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock CLUTCH CABLE FOWLS LEFT LOCK (2.1.4 (c)) | 1 |
| Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock On left lock, steering stop damaged (2.1.4 (b)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle sticks open on right steering lock (6.2.7 (a) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside 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)) | 1 |
| Rear Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| 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 loose & corroded (6.1.7 (c) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 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 |
| Stop lamp not working Rear brake light switch requires adjustment (4.3.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Central Rear reflector missing (4.8.2 (a) (ii)) | 1 |