| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 22 |
| Rear reflector missing (4.8.2 (a) (ii)) | 18 |
| Headlamp aim out of alignment | 16 |
| Registration plate issues | 13 |
| Rear reflector missing |4.8.2 |a| |ii|| | 10 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 9 |
| Front Brake excessively binding (1.2.1 (f)) | 7 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 7 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Stop lamp remains on when the brakes are released | 6 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 3 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 3 |
| Drive chain worn to excess |6.1.7 |c| |i|| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Rear Wheel spindle locking device missing (5.2.1 (d)) | 3 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 2 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 2 |
| 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 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Front Horn not working (7.7 (a) (ii)) | 2 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure frame rail/crash bar loose and insecure |6.1.1 |b| |i|| | 1 |
| Front Brake lever excessively worn lever broken|ball end missing| leaving sharp edge |1.1.15 |b|| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition db baffle out (8.1.1 (a)) | 1 |
| Stop lamp not working Rear brake stop light (4.3.1 (a) (ii)) | 1 |
| Fork yoke insecure top nut loose |2.2.2 |d| |i|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Front Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Nearside Front Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Footrest missing Both rear foot rest seized (6.2.12 (a)) | 1 |
| Rear All direction indicators obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake lever has restricted free movement Lever sticking (1.1.15 (e)) | 1 |
| Headlamp not working on dipped beam low beam bulb blown (4.1.1 (a) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Drive chain excessively loose adjusted lubricated (6.1.7 (c) (i)) | 1 |
| Front Position lamp not working replaced bulb (4.2.1 (a)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |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 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition baffle missing |7.1.2| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Upper Suspension attachment bracket/mounting insecure bolt slightly loose (5.3.3 (a) (i)) | 1 |
| Stop lamp not working foot brake (4.3.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal failed (5.3.2 (b)) | 1 |
| Central Rear Lower Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Offside Front Lower Wheel fixing missing (single fixing) split pin missing (5.2.1 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Upper Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Brake disc|s| excessively worn min thickness is 4.5mm -- the discs are 3.3mm and 3.4mm respectively |3.2.A1l| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls Front brake control. (4.3.2 (a) (iii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Front Suspension arm attachment bracket/mounting insecure (5.3.3 (a) (i)) | 1 |
| Front Shock absorber has a serious fluid leak both |5.3.2 |b|| | 1 |
| Horn not working |1.7.3a| | 1 |
| Central Front Horn not working (7.7 (a)) | 1 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp reflector missing (4.1.1 (b) (ii)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Fuel cap ineffective |6.1.3 |b| |i|| | 1 |
| Front Steering headbearing excessively stiff or notchy Headbearings excessively notchy at centre point of steering. (2.2.2 (f) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen Led bulb fitted (4.1.2 (a)) | 1 |
| Front Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Central Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Central Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Nearside Rear Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |