| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Registration plate issues | 22 |
| Rear reflector on motorcycle missing |1.4.1| | 21 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Headlamp aim beam image kick up to the offside |1.6| | 5 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Drive chain excessively loose |6.2.1d| | 4 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Horn not working |1.7.3a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Horn not working (7.7 (a) (ii)) | 4 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 3 |
| Headlamp aim not tested |1.6| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Rear reflector missing |4.8.2 |a| |ii|| | 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 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Brake pedal insecure |3.1.2a| | 2 |
| Rear position lamp insecure |1.1.1c| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Horn missing |1.7.1| | 2 |
| Brake locking device missing |3.2.A1e| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Rear position lamp damaged and function impaired |1.1.1b| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Horn control defective |1.7.2a| | 2 |
| Offside Rear Footrest missing (6.2.12 (a)) | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| An item not tested |Manual| | 1 |
| Nearside Fuel hose leaking |7.2.1a| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Front Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear Brake locking device missing Brake ankor bolt no locking nut fitted! |3.2.A1e| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Centre Rear Lower Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Inner Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Inner Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Headlamp missing |1.2.3a| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| Brake lever insecure |3.1.2a| | 1 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake locking device insecure brake tie rod |3.2.A1e| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear 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 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Brake reaction bracket insecure |3.2.A1j| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Headlamp switch faulty |1.2.4| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Roller brake test No brake control achieves an efficiency of 30% |1.2.2 |a| |i|| | 1 |
| Rear reflector missing replace |4.8.2 |a| |ii|| | 1 |
| Front Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Nearside Front Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake hose fouling shockabsorber spring |3.2.B3b| | 1 |
| Hydraulic brake control feels spongy front lever |3.1.4a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Offside Brake reaction bracket insecure |3.2.A1j| | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |
| Suspension attachment bracket/mounting insecure Top yoke bolt loose |5.3.3 |a| |i|| | 1 |
| Riders seat missing |6.2.1a| | 1 |
| Drive chain so loose it is likely to fail |6.1.7 |c| |ii|| | 1 |
| Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride wheel split pin locking devise missing |6.2.1h| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Front Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Drive chain excessively loose |6.2.1d| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Rear Position lamp light intensity significantly reduced led light not working by more than 50% and flashing |4.2.3 |a| |ii|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Registration plate lamp issues | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Rear Wheel spoke missing |4.2.1b| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Rear reflector missing reflector fitted |4.8.2 |a| |ii|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Lower Brake locking device missing torque arm |3.2.A1e| | 1 |
| Offside Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Fuel cap ineffective |6.1.3 |b| |i|| | 1 |
| Rear Wheel excessively distorted |5.2.2 |c| |i|| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Throttle operating incorrectly Throttle stiff (6.2.7 (a) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 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 |
| Rear Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation SWITCH NOT WORKING (4.3.2 (a) (ii)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp not working on dipped beam REPLACED BULB (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |