| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 24 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 15 |
| Drive chain excessively loose |6.2.1d| | 10 |
| Registration plate issues | 10 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Drive chain worn to excess |6.2.1e| | 8 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 6 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Direction indicators not working |1.5.1c| | 4 |
| Horn not working |1.7.3a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Rear Wheel spoke cracked. |4.2.1b| | 3 |
| Rear Brake locking device missing |3.2.A1e| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Wheel spoke excessively loose |4.2.1b| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Rear Wheel spoke missing |4.2.1b| | 2 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 2 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear Brake pedal is inoperative |3.1.3c| | 2 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front position lamp does not illuminate immediately when switched on side light |1.1.3a| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Central Rear Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Nearside Rear suspension component excessively bent |2.4.A.1a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Wheel bearing play so excessive it is likely to break up |5.1.3 |a| |ii|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 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 |
| Brake locking device missing |3.2.A1e| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Registration plate lamp issues | 1 |
| Headlamp aim not tested no dip beam (4.1.2 (b)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| All direction indicators incorrect colour all (4.4.3 (a)) | 1 |
| Nearside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Nearside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Nearside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Brake component has an inadequate repair |3.1.5| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 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 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Centre Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Brake hose is likely to be fouled or trapped by moving parts Touches exhaust |3.2.B2c| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Rear suspension component loose Damper top fixing excessive play. N/S and O/S |2.4.A.1a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level |1.1.10 |d| |ii|| | 1 |
| Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Front Wheel corroded significantly reducing the original strength |4.2.1a| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced (6.1.1 (c) (i)) | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. swing arm |2.4.A.2d| | 1 |
| Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 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 Front suspension assembly component loose |2.3.1| | 1 |
| Rear Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Horn missing |1.7.1| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |