| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Headlamp aim out of alignment | 6 |
| Registration plate lamp issues | 5 |
| Stop lamp remains on when the brakes are released | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Central Lower Exhaust has a major leak of exhaust gases Header blowing at manifold |6.1.2 |a|| | 2 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Registration plate issues | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear reflector on motorcycle obscured |1.4.2b| | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Headlamp insecure (4.1.1 (c)) | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Nearside Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Brake lagging in operation |1.2.1 |d|| | 1 |
| Rear Brake effort inadequate at a wheel |1.2.1 |a| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Front Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Horn not working |1.7.3a| | 1 |
| Offside Rear Exhaust has part of the system missing |7.1.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp switch faulty main beam switch intermittently not working |1.2.4| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Brake lever pivot excessively worn (1.1.1 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Rear Lower Engine mounting/bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Nearside Rear Lower Engine mounting/bracket bracket excessively loose (6.1.8 (a) (ii)) | 1 |
| Nearside Front Upper Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake caliper inadequately mounted lower mounting bolt loose (1.1.16 (c) (i)) | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Rear suspension bush has excessive free play Engine mounts |2.4.A2a|i|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Front Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Rear Wheel hub worn to the extent that wheel security is adversely affected rear wheel has excessive movement |5.2.1 |b| |ii|| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Central Rear Lower Rear reflector missing central rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Stop lamp does not illuminate immediately a brake applies l/h control |1.3.1a| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front position lamp incorrect colour blue |1.1.2a| | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Rear Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Brake hose is likely to be fouled or trapped by moving parts rear brake hose insecure |3.2.B2c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Rear Direction indicator likely to become detached repaired during test (4.4.1 (c) (ii)) | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake excessively binding caliper sticking (1.2.1 (f)) | 1 |
| Headlamp switch faulty Wont work on main beam correctly |1.2.4| | 1 |
| Rear Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Suspension component pin or bush excessively worn ENGINE MOUNTING REAR SUSPENSION BEARINGs |5.3.4 |a| |i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Central Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Central Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |