| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 34 |
| Headlamp aim out of alignment | 31 |
| Rear reflector missing (4.8.2 (a) (ii)) | 14 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 9 |
| Steering headbearing has excessive free play |2.2.2| | 9 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 9 |
| Registration plate issues | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 7 |
| Stop lamp remains on when the brake is released |1.3.1e| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Horn not working |1.7.3a| | 6 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 5 |
| Stop lamp remains on when the brakes are released | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Registration plate lamp issues | 5 |
| Offside Rear Direction indicator not working |1.5.1c| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 4 |
| Front position lamp incorrect colour |1.1.2a| | 4 |
| Nearside Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 4 |
| Offside Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 4 |
| Riders seat insecure (6.2.5 (a) (ii)) | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| 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| | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 3 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 2 |
| Direction indicator not working |1.5.1c| | 2 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 2 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Shock absorber has a serious fluid leak front forks leaking excessively (5.3.2 (b)) | 1 |
| Nearside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Rear suspension bush has excessive free play engine mounts (2.4.A2a(i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak front left fork leaking oil excessively (5.3.2 (b)) | 1 |
| Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Built up wheel has a loose bolt/s |4.2.1c| | 1 |
| Headlamp light intensity severely reduced ON MAIN AND DIPPED BEAM (4.1.4 (a)) | 1 |
| Front Lower Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front mudguard can easily contact the wheel |2.3.7| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Offside Position lamp not working |4.2.1 |a|| | 1 |
| Rear suspension bush excessively deteriorated rubber silent block bush |2.4.A2a|i|| | 1 |
| Rear Suspension attachment bracket/mounting insecure engine to frame bushes and bearings |5.3.3 |a| |i|| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Nearside Rear Direction indicator incorrect colour Showing white light |1.5.1b| | 1 |
| Rear Rear suspension bush has excessive free play suspension arm |2.4.A2a|i|| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Centre Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Nearside Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front position lamp incorrect colour |1.1.2a| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected sticking |6.2.7 |a| |ii|| | 1 |
| Headlamp not working on dipped beam side light |4.1.1 |a| |ii|| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Offside Rear Direction indicator likely to become detached |4.4.1 |c| |ii|| | 1 |
| Rear spring corroded and seriously weakened |2.4A1b|ii|| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Horn is not continous or uniform affected by the operation of other lamps |1.7.3c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Steering headbearing has excessive wear or free play Steering Bearings loose. |2.2.2 |f| |i|| | 1 |
| Front Steering linkage has excessive free play |2.2.2| | 1 |
| Offside Front Lower Shock absorber has an excessively worn bush Has excessive play inside front fork stantion (5.3.2 (c)) | 1 |
| Nearside Front Lower Shock absorber has an excessively worn bush Has excessive play in near side front fork stantion (5.3.2 (c)) | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Rear suspension bush excessively deteriorated rear frame all bush gone |2.4.A2a|i|| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies no brake light |1.3.1a| | 1 |
| Fuel system component leaking |6.1.3 |b| |i|| | 1 |
| Offside Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Gradient brake test indicates a sticking brake |3.3.D1c| | 1 |
| Leg shield insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Brake hose fouling Rear brake hose trapped by centre stand |3.2.B3b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Direction indicator obscured |1.5.1a| | 1 |
| Vehicle identification number not legible |6.3.5a| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Offside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Lower Fuel system component leaking |7.2.1a| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear Riders seat insecure |6.2.1a| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Horn not working (1.7.3a) | 1 |
| Fuel cap does not fasten securely by a positive means (7.2.2b) | 1 |
| Rear Floor brake test indicates a binding brake (3.3.C2c) | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 1 |
| Nearside Rear Direction indicator lens defective such that the emitted light is adversely affected (4.4.1 (b) (ii)) | 1 |
| Central Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Central Rear Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Central Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Central Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Suspension component attachment bracket/mounting damaged and seriously weakened engine mounts (5.3.3 (b) (i)) | 1 |
| Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| Rear Suspension component pin or bush excessively worn linkage (5.3.4 (a) (i)) | 1 |
| Centre Front Lower Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Centre Front Upper Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear suspension bearing has excessive free play Engine mountings |2.4.A2a|i|| | 1 |
| Front Engine mounting/bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Stop lamp not working not work from front or rear brake lever (4.3.1 (a) (ii)) | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Horn control defective intermittant |1.7.2a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Fork yoke deformed |2.1.1b| | 1 |
| Front suspension assembly component excessively misaligned Top yolk |2.3.1| | 1 |
| Exhaust system insecure main bracket fractured - pointed out to customer - (6.1.2 (a)) | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front shock absorber seal failed and leaking oil both |2.3.3| | 1 |
| Offside Direction indicator missing |1.5.1a| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Nearside Rear Lower Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear suspension bearing has excessive free play engine bearings |2.4.A2a|i|| | 1 |
| Indicator tell tale not operating correctly |1.5.2| | 1 |
| Front mudguard insecure front mudguard missing |2.3.7| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake pipe likely to become detached or damaged |1.1.11 |d| |ii|| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Headlamp not working on dipped beam (4.1.1 (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 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Direction indicator missing Rear (4.4.1 (a) (ii)) | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Front Suspension arm pin or bush excessively worn fork stanchion bushes worn resulting in excessive play (5.3.4 (a) (i)) | 1 |
| Offside Front Suspension arm pin or bush excessively worn fork stanchion bushes worn resulting in excessive play (5.3.4 (a) (i)) | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure Rear Subframe/Wheel arm - Upper bolt missing |6.1.1 |b| |i|| | 1 |
| Front Exhaust has a major leak of exhaust gases Leaking near header pipe |6.1.2 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Fuel system component leaking excessively or a risk of fire intermittent leak of fuel from under the fuel tank (6.1.3 (b) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak on caliper side but other leaking as well |5.3.2 |b|| | 1 |
| Front Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Decelerometer brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Rear suspension bush has excessive free play swinging arm |engine to frame| |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush has excessive free play swinging arm |engine to frame| |2.4.A2a|i|| | 1 |
| Offside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Stop lamp does not illuminate immediately a brake applies on both brake levers |1.3.1a| | 1 |
| Rear Stop lamp not working on both leavers, (4.3.1 (a) (ii)) | 1 |
| Front Motorcycle structure excessively damaged frame bent |6.1.1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Stop lamp not working front lever (4.3.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front An item not tested |Manual| | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Rear wheel insecure spacer missing |4.2.3b| | 1 |
| Front Wheel spindle locking device ineffective (5.2.1 (d)) | 1 |