| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 7 |
| Registration plate issues | 6 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Registration plate lamp issues | 3 |
| Windscreen wiper does not clear the windscreen effectively | 3 |
| Exhaust Lambda reading after 2nd fast idle outside specified limits (8.2.1.2 (c)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Anti-lock braking system warning lamp indicates an ABS fault | 2 |
| Horn not working |1.6.2a| | 2 |
| Rear fog lamp not working |1.3.2b| | 2 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 2 |
| Exhaust carbon monoxide content at idle exceeds manufacturers specified limits (8.2.1.2 (b)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Nearside Track rod end ball joint has excessive play |2.1.3 |b| |i|| | 1 |
| Rear fog lamp switch missing |1.3.1a| | 1 |
| Offside Inner Front constant velocity joint gaiter damaged to the extent that it no longer prevents the ingress of dirt etc |2.5.C.1a| | 1 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Rear Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear fog lamp missing |4.5.1 |a| |ii|| | 1 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Nearside Front Steering rack gaiter missing or no longer prevents the ingress of dirt |2.1.3 |g| |ii|| | 1 |
| Offside Front Steering rack gaiter missing or no longer prevents the ingress of dirt |2.1.3 |g| |ii|| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Brakes imbalanced across an axle | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute all |1.5.1c| | 1 |
| Offside Front Upper Suspension arm ball joint excessively worn |5.3.4 |a| |i|| | 1 |
| Nearside Front Brake hose twisted |found during steering lock to lock check| |2.2.D.2b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside 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 |
| 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 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Forks excessively corroded |2.2.2 |d| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Offside Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Exhaust carbon monoxide content after 2nd fast idle exceeds default limits (8.2.1.2 (b)) | 1 |
| Nearside Rear Towbar excessively corroded within 30cm of towbar mounting (6.1.6 (i) (i)) | 1 |
| Offside Rear Towbar excessively corroded within 30cm of towbar mounting (6.1.6 (i) (i)) | 1 |
| Throttle operating incorrectly Throttle is sticking when steering is on right hand lock (6.2.7 (a) (i)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Windscreen washer not working | 1 |
| Electronic power steering warning lamp indicates a system malfunction (2.6 (a)) | 1 |
| Bonnet cannot be secured in the closed position (3.1 (b) (i)) | 1 |
| Front Bumper insecure (6.1.4 (a) (i)) | 1 |
| Rear fog lamp not working (4.5.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 1 |
| Rear Brake rod insecure (1.1.15 (c)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Fuel pipe leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Offside Headlamp aim projected beam image is obviously incorrect (4.1.2 (c)) | 1 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 1 |
| Offside Headlamp light intensity severely reduced bulb not correctly fitted (4.1.4 (a)) | 1 |
| Exhaust hydrocarbon content after 2nd fast idle exceeds manufacturers specified limits (8.2.1.2 (a)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Offside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Brake back plate insecure split pin missing (1.1.14 (d)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Throttle operating incorrectly grip loose and twisting (6.2.7 (a) (i)) | 1 |
| Fuel system component leaking carburettor (6.1.3 (b) (i)) | 1 |
| Front Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Rear Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Fuel pipe leaking (6.1.3 (b) (i)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |