| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 36 |
| Rear reflector missing (4.8.2 (a) (ii)) | 33 |
| Registration plate issues | 16 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 8 |
| Registration plate lamp issues | 7 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Horn not working (7.7 (a)) | 5 |
| Stop lamp remains on when the brakes are released | 4 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 4 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Rear Wheel spoke excessively loose (5.2.2 (d)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Handlebar retaining device missing (2.2.1 (b) (i)) | 1 |
| Rear Stop lamp not working Spring not hooked in. (4.3.1 (a) (ii)) | 1 |
| Handlebar restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Front Brake component insecure No locking device fitted to front brake lever pivot (1.1.21 (c)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Throttle operating incorrectly sticks on right hand lock (6.2.7 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Suspension arm pin or bush likely to become detached Rear linkage arm bolt was loose (5.3.4 (a) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Stop lamp switch with a delay in operation foot brake switch needs adjusting. (4.3.2 (a) (ii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (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 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Horn not working Not present at time of test (7.7 (a)) | 1 |
| Wheel spoke excessively loose Number of spokes loose (5.2.2 (d)) | 1 |
| Offside Front Shock absorber has a serious fluid leak RH fork seal leaking (5.3.2 (b)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Rear switch was disconnected. (4.3.2 (a) (iii)) | 1 |
| Front Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls lamp not responding on rear pedal (4.3.2 (a) (iii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Wheel fixing loose (multiple fixings) spindle pinch bolts(both). (5.2.1 (a) (i)) | 1 |
| Shock absorber insecurely attached All eight securing bolts loose (5.3.2 (a) (i)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Stop lamp not working from front lever (4.3.1 (a) (ii)) | 1 |
| Rear Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition baffle missing from exhaust (8.1.1 (a)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Lower Suspension arm attachment bracket/mounting insecure Link nut missing (5.3.3 (a) (i)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Brake lever has insufficient reserve travel throttle control loose fouling brake lever (1.1.2 (a)) | 1 |