| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Registration plate lamp issues | 12 |
| Stop lamp remains on when the brakes are released | 5 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Registration plate issues | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Rear Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Riders seat insecure |6.2.5 |a| |ii|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Horn emits 2 or more alternating tones |1.7.3b| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Rear Brake component is excessively corroded rear brake arm/pivot siezed |3.1.5| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Brake lever pivot excessively worn |1.1.1 |b|| | 1 |
| Throttle operating incorrectly Throttle body moving when throttle operated. |6.2.1f| | 1 |
| Headlamp switch faulty Switch does not switch of light, when in headlamp position on switch, lights dim. |1.2.4| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on Only working with the headlamp switch in headlamp position. |1.1.3a| | 1 |
| Nearside Stop lamp does not emit a steady light Brake light not coming on when rear brake applied. |1.3.1b| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Upper Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort on brake meter and on road test |3.3.A1d| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Central Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Central Front Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Nearside Front Brake lever has insufficient reserve travel adjust rear brake |1.1.2 |a|| | 1 |
| Nearside Front Handlebar deformed |2.1.1b| | 1 |
| Nearside Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Central Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Exhaust excessively deteriorated and blowing |7.1.1a| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Valve stem seriously damaged leaking air and had a visible hole in valve base rubber |5.2.3 |j|| | 1 |
| Direction indicator not working all |1.5.1c| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| All direction indicators obviously incorrectly positioned do not meet section 4.4.3 |4.4.3 |a|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Stop lamp does not illuminate immediately a brake applies Front Control |1.3.1a| | 1 |
| Rear Brake cable insecure | 1 |
| Stop lamp adversely affected by the operation of another lamp |4.3.3 |b|| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Front Upper Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure front fender insecure (6.1.1 (b) (i)) | 1 |
| Central Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake effort inadequate at a wheel brake test passed on efficiency but did not lock wheel even with maximum pressure on lever (1.2.1 (a) (i)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Brake lever so insecure that the brake cannot be readily applied Rear brake control (1.1.2 (e) (ii)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake lever pivot excessively worn (1.1.1 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Offside Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 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 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Engine idle speed too high rear wheel rotating at tick over. (6.2.7 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Rear Brake cable has restricted free movement (1.1.15 (e)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Brake rod insecure brake adjuster insecure (1.1.15 (c)) | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Brake lever has insufficient reserve travel front (1.1.2 (a)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front Brake lever has insufficient reserve travel Rear brake needs adjusting (1.1.2 (a)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |