| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 20 |
| Registration plate issues | 15 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 6 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Riders seat insecure |6.2.1a| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Nearside Rear Direction indicators not working |1.5.1c| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Indicator tell tale not functioning |1.5.2| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Headlamp insecure |1.2.3b| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Horn sounds harsh or grating |1.7.3c| | 2 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 2 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Offside Steering lock stop ineffective |2.1.3| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Central Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front All position lamps not working |4.2.1 |a|| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Direction indicator missing |4.4.1 |a| |ii|| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Upper Indicator tell tale not functioning |1.5.2| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Front position lamp missing |1.1.1a| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Offside Front Lower Suspension arm mounting has an unsafe modification (5.3.3 (c) (i)) | 1 |
| Front Lower Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Offside Front Brake cable badly frayed |3.2.A1b| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Rear Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Headlamp switch faulty head light switch intermittent |1.2.4| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Rear Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Rear Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake cable damaged broken on test (1.1.15 (a)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Headlamp missing |1.2.3a| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| 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| | 1 |
| Brake locking device insecure |3.2.A1e| | 1 |
| Offside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Stop lamp not working WHEN FRONT BRAKE IS APPLIED |4.3.1 |a| |ii|| | 1 |
| Nearside Direction indicator not working LEFT HAND |4.4.1 |a| |ii|| | 1 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Centre Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Central Front Upper Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Central Rear Lower Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| An item not tested |Manual| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Riders seat missing |6.2.1a| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Centre Front Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Centre Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Lower Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Indicator tell tale not operating correctly |1.5.2| | 1 |
| Nearside Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 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 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Central Rear Riders seat insecure off seat (6.2.5 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Central Front Fuel cap leaking (6.1.3 (b) (i)) | 1 |
| Rear Rear suspension component seized |2.4A2a|ii|| | 1 |
| Rear Stop lamp insecure |1.3.3b| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |