| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 25 |
| Headlamp aim out of alignment | 25 |
| Registration plate issues | 12 |
| Registration plate lamp issues | 10 |
| Rear Position lamp not working (4.2.1 (a)) | 7 |
| Rear reflector missing |4.8.2 |a| |ii|| | 7 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Stop lamp remains on when the brakes are released | 6 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 6 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 6 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 6 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 5 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 5 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 5 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 5 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 5 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 4 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Headlamp insecure (4.1.1 (c)) | 3 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Headlamp reflector seriously defective (4.1.1 (b) (ii)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 2 |
| Rear Wheel bearing play so excessive that directional control is impaired (5.1.3 (a) (ii)) | 2 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 2 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 2 |
| Front Shock absorber has a serious fluid leak Both front forks are leaking (5.3.2 (b)) | 1 |
| Brake pedal pivot has excessive free play Rear brake pedal spring missing. too much free play (1.1.1 (b)) | 1 |
| Stop lamp not working not working when front brake applied (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Nearside Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Nearside Drive chain so worn it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Rear Brake cylinder insecurely mounted and braking performance affected Brake rod locking nuts mounted in correctly (1.1.16 (c) (ii)) | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Upper Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Stop lamp not working Brake not working rear light (4.3.1 (a) (ii)) | 1 |
| Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Suspension arm ball joint excessively worn also rough in operation of rear suspension |5.3.4 |a| |i|| | 1 |
| Brake pedal pivot excessively worn |1.1.1 |b|| | 1 |
| Rear Brake fluid contaminated |1.8 |a|| | 1 |
| Drive chain horseshoe locking device incorrectly fitted |6.1.7 |j| |i|| | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Fuel pipe damaged tank overflow vent pipe (6.1.3 (c) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Throttle operating incorrectly not returning (6.2.7 (a) (i)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Front Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls switch wiring loose (4.3.2 (a) (iii)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Fuel system component leaking carb area (6.1.3 (b) (i)) | 1 |
| Front Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working Front brake (4.3.1 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Shock absorber has a serious fluid leak both sides (5.3.2 (b)) | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Suspension arm likely to fail Rear Suspension siezed solid. (5.3.3 (b) (ii)) | 1 |
| Suspension arm pin or bush excessively worn Swinging arm bushes worn (5.3.4 (a) (i)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted 2 split links with clips wrong way round. (6.1.7 (j) (i)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Front Wheel alignment incorrect which adversely affects the steering pulls to Nearside (2.4 (a)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Front Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain sprocket so loose it is likely to fail rear sprocket bolt missing (6.1.7 (c) (ii)) | 1 |
| Nearside Rear Upper Engine mounting/bracket fractured (6.1.8 (a) (ii)) | 1 |
| Nearside Rear Lower Engine mounting/bracket fractured (6.1.8 (a) (ii)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Cable excessively tight (6.2.7 (a) (ii)) | 1 |
| Stop lamp likely to become detached (4.3.1 (c) (ii)) | 1 |
| Fuel cap ineffective Unable to open (6.1.3 (b) (i)) | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Nearside Rear Drive chain sprocket so loose it is likely to fail all mounting bolts loose (6.1.7 (c) (ii)) | 1 |
| Central Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases pipe missing |6.1.2 |a|| | 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 when operated by front switch (4.3.1 (a) (ii)) | 1 |
| Nearside Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Rear Exhaust system insecure (6.1.2 (a)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Front Brake pedal insecure (1.1.2 (e) (i)) | 1 |
| Rear Position lamp missing (4.2.1 (a)) | 1 |
| Stop lamp missing (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Brake lever excessively worn (1.1.15 (b)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Shock absorber has a serious fluid leak both front fork seals leaking (5.3.2 (b)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Stop lamp not working Front brake light switch not working (4.3.1 (a) (ii)) | 1 |