| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 37 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 11 |
| Registration plate lamp issues | 9 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 7 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 7 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 6 |
| Parking brake: efficiency below requirements |3.7.B.7| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Horn not working |1.7.3a| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 2 |
| Offside Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Nearside Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Parking brake lever has excessive movement indicating incorrect adjustment (1.1.6 (c)) | 2 |
| Rear parking brake recording little or no effort | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Rear Service brake excessively binding (1.2.1 (f)) | 2 |
| Front Front position lamp|s| not working |1.1.A.3b| | 2 |
| Rear Parking brake efficiency below requirements (1.4.2 (a) (i)) | 2 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 2 |
| Front Position lamp not working (4.2.1 (a) (ii)) | 2 |
| Riders seat insecure |6.2.1a| | 1 |
| Rear Brake pedal anti-slip provision loose (1.1.2 (c)) | 1 |
| An item not tested |Manual| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Offside Brake lever has inadequate reserve travel |9.3.1f| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Service brake excessively fluctuating (1.2.1 (e)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Hazard warning switch inoperative not working (4.4.2 (a) (ii)) | 1 |
| Stop lamp(s) not working on O/S brake lever (4.3.1 (a) (ii)) | 1 |
| Nearside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Offside Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Fuel cap/sealing device missing |6.1.3 |b| |i|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Nearside Steering lock stop missing |2.1.3| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Stop lamp not working control |4.3.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Front Lower Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 1 |
| Front Stop lamp|s| not working handlebar control |4.3.1 |a| |ii|| | 1 |
| Service brake excessively binding due to handbrake control sticking on |1.2.1 |f|| | 1 |
| Steering headbearing has excessive free play Both nearside and offside suspension legs |2.2.2| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Steering linkage has excessive free play centre pivot |2.2.2| | 1 |
| Nearside Front Steering linkage has excessive free play |2.2.2| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Semaphore indicator switch faulty |1.4.C.1c| | 1 |
| Stop lamp(s) remains on when the brakes are released (4.3.2 (a) (iii)) | 1 |
| Hazard warning switch inoperative (4.4.2 (a) (ii)) | 1 |
| Offside Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Front Body panel insecure wheel arch trim (6.2.1 (a) (i)) | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Nearside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Offside Front Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Steering column top bearing excessively worn very notchy (2.2.2 (b)) | 1 |
| Fuel cap/sealing device ineffective (6.1.3 (b) (i)) | 1 |
| Rear Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Shock absorbers has negligible damping effect (5.3.2 (d)) | 1 |
| Offside Front Shock absorbers has negligible damping effect (5.3.2 (d)) | 1 |
| Offside Headlamp aim aimed so that it dazzles other road users |1.8.A.1a| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Rear Shock absorbers has a serious fluid leak | 1 |
| Nearside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Fork yoke in such a condition that steering control is adversely affected headstock bearings siezed (2.2.2 (f) (ii)) | 1 |
| Front Service brake excessively binding (1.2.1 (f)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Offside Front Body component damaged and likely to cause injury WING (6.2.1 (a) (i)) | 1 |
| Offside Front Body component damaged and likely to cause injury INDICTOR (6.2.1 (a) (i)) | 1 |
| Parking (secondary brake) on a single line braking system grabbing severely (1.3.1 (c)) | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Rear Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Suspension rod likely to become detached (5.3.3 (a) (ii)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Suspension unit damaged or deteriorated and function affected (5.3.5 (b) (i)) | 1 |
| Rear Parking brake efficiency below requirements |3.7.C.1b| | 1 |
| Handlebar mounting clamp bolt loose (2.1.1a) | 1 |
| Brake pedal anti-slip provision missing |1.1.2 |c|| | 1 |
| Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 1 |
| Rear wheel spindle securing nut|s| loose This would have worn the drive shaft. Check wheel play regularly. Replace shaft and wheel if it comes loose again. |2.4.A.2b| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Stop lamp emits other than a steady red light |1.2.1e| | 1 |
| Offside Front Direction indicator insecure |1.4.A.2b| | 1 |
| Brake pedal anti-slip provision missing |3.3.A.1b| | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Position lamp adversely affected by the operation of another lamp (4.2.3 (c)) | 1 |
| Offside Front Position lamp adversely affected by the operation of another lamp (4.2.3 (c)) | 1 |
| Rear Service brake lagging in operation foot brake (1.2.1 (d)) | 1 |
| Suspension arm attachment bracket/mounting damaged and seriously weakened swinging arm/engine mounts. |5.3.3 |b| |i|| | 1 |
| Offside Rear Direction indicator insecure |1.4.A.2b| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake lever has inadequate reserve travel linked system has abnormal travel, linked with rear pedal |3.1.3b| | 1 |
| Driver`s seat insecure |6.2.A.1| | 1 |
| Parking brake efficiency below requirements |1.4.2 |a| |i|| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Footrest missing |9.6.1| | 1 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 1 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Front brake excessively fluctuating | 1 |
| Obligatory mirror missing both |3.3 |a|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Registration plate issues | 1 |
| Nearside Front Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. BOTH |2.4.A.2d| | 1 |
| Driver`s seat insecure |6.2.5 |a| |ii|| | 1 |
| Nearside Rear Suspension arm attachment bracket/mounting fractured (5.3.3 (b) (ii)) | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Parking brake lever defective so that it cannot be satisfactorily operated (1.1.6 (d)) | 1 |
| Nearside Front Service brake excessively fluctuating (1.2.1 (e)) | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Lower Suspension component has excessive wear or free play lower linkage excessively worn on both sides |5.3.3 |d|| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Brake pedal anti-slip provision missing (1.1.2 (c)) | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Front Brake lever has restricted free movement |1.1.15 |e|| | 1 |
| Front Steering headbearing has excessive wear or free play Both fork arms |2.2.2 |f| |i|| | 1 |
| Front Wheel bearing play so excessive that directional control is impaired both wheel |5.1.3 |a| |ii|| | 1 |
| Front Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Rear Road spring worn so that its cross sectional area is reduced and seriously weakened |5.3.1 |b| |i|| | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp not working when front brake lever applied rear brake light not working. (4.3.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy head stock bearings notchy with weight on and off. (2.2.2 (f) (i)) | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Stop lamp not working when o/s front brake lever applied rear brake light not working. |4.3.1 |a| |ii|| | 1 |
| Nearside Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Brake disc contaminated both front covered in grease. |1.1.14 |b|| | 1 |
| Brake indicates excessive fluctuation of brake effort both front. |1.2.1 |e|| | 1 |
| Nearside Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Nearside Front All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Nearside Rear Direction indicator insecure |1.4.A.2b| | 1 |
| Offside Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Headlamp not working on main beam |1.7.5a| | 1 |
| Hazard warning switch faulty |1.4.B.1d| | 1 |
| Front position lamp|s| not working |1.1.A.3b| | 1 |
| Headlamp switch faulty |1.7.1| | 1 |
| Nearside Rear Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Obligatory mirror insecure |8.1.1| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Offside Front Direction indicator missing |1.4.A.2b| | 1 |
| Offside Front Brake lever has inadequate reserve travel front brake lever soft when pulled touches handle bars |9.3.1f| | 1 |
| Rear Sub-frame attachment rubber mounting deteriorated resulting in excessive movement front mount worn |2.4.G.2| | 1 |
| Parking brake efficiency below requirements |3.7.C.1b| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Offside Rear Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Rear Upper Motorcycle structure joining/attachment plate or fastening insecure |6.1.1 |b| |i|| | 1 |
| Rear suspension bush has excessive free play Engine mounts |2.4.A2a|i|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Rear Shock absorbers insecurely attached securing nut missing (5.3.2 (a) (i)) | 1 |
| Headlamp not working on dipped beam |1.7.5a| | 1 |
| Steering head bearings has excessive wear or free play (2.2.2 (g)) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Hydraulic brake control feels spongy front brake |3.1.4a| | 1 |
| Nearside Stop lamp|s| showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |