| Most common failures | No# failures |
|---|
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 22 |
| Headlamp aim out of alignment | 13 |
| Registration plate issues | 12 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 9 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Riders seat insecure |6.2.1a| | 4 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Direction indicators not working |1.5.1c| | 3 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 3 |
| Horn is not a constant note |1.7.3c| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 3 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| 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| | 2 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 2 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Brake pipe inadequately supported |3.2.B2b| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Brake hose excessively deteriorated | 2 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Brake lever is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Exhaust mounting missing |7.1.1c| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies FRONT BRAKE |1.3.1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Brake lever attachment screws missing |3.1.2b| | 1 |
| Brake performance not tested |3.3| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Centre Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Horn control defective |1.7.2a| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Stop lamp does not illuminate immediately a brake applies front |o/s lever| |1.3.1a| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Central Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Direction indicators flashing less than 60 times a minute all 4 indicators not flashing. |1.5.1c| | 1 |
| Central Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Front Lower Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Brake pipe excessively corroded | 1 |
| Brake cylinder severely corroded |3.2.B1b| | 1 |
| Motorcycle structure excessively corroded main stand loose |6.1.1a| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Stop lamp not working fails to operate on rear brake |4.3.1 |a| |ii|| | 1 |
| Centre Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Centre Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |