| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 28 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Riders seat insecure |6.2.1a| | 12 |
| Registration plate issues | 11 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Front wheel bearings have excessive free play |2.3.5b| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Offside Rear Footrest missing |6.2.1a| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Horn not working |1.7.3a| | 5 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 4 |
| Drive chain excessively tight |6.2.1d| | 4 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 4 |
| Nearside Rear Footrest missing |6.2.1a| | 4 |
| Fuel system component insecure |7.2.1b| | 4 |
| Nearside Front Direction indicators not working |1.5.1c| | 4 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 4 |
| Front wheel bearings are excessively rough |2.3.5b| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear position lamp insecure |1.1.1c| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Nearside Steering lock stop ineffective |2.1.3| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 3 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Footrest missing |6.2.1a| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Offside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Steering lock stop ineffective |2.1.3| | 2 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Nearside Handlebar deformed |2.1.1b| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Indicator switch insecure |1.5.4| | 2 |
| Rear Exhaust mounting missing |7.1.1c| | 2 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Nearside Direction indicator not working |1.5.1c| | 2 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Chain guard insecure |6.2.1c| | 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 |
| Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Stop lamp does not illuminate immediately a brake applies from front brake |1.3.1a| | 1 |
| Stop lamp remains on when the brake is released from back brake |1.3.1e| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Front mudguard insecure missing |2.3.7| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection clutch lever fouling clocks |2.1.2c| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Offside Rear Suspension arm fractured (5.3.3 (b) (ii)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Offside Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Front Riders seat insecure |6.2.1a| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 1 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Fairing insecure and likely to impede the steering |2.1.2e| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Seat insecure |6.2.1a| | 1 |
| An item not tested |Manual| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Throttle operating incorrectly sticky on release |6.2.1f| | 1 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Rear Seat insecure |6.2.1a| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Stop lamp insecure |1.3.3b| | 1 |
| Centre Riders seat insecure |6.2.1a| | 1 |
| Centre Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Centre Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Centre Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Front Handlebar deformed |2.1.1b| | 1 |
| Centre Front Indicator switch insecure |1.5.4| | 1 |
| Front Brake hose stretched by steering movement |3.2.B3b| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Offside Position lamp switch insecure |1.1.4b| | 1 |
| Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Brake locking device insecure |3.2.A1e| | 1 |
| Upper Fuel system component insecure |7.2.1b| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Direction indicator missing |1.5.1a| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Brake hose fouling |3.2.B3b| | 1 |
| Rear wheel spindle loose |2.4.A.2b| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Exhaust markings indicating not for road use or similar wording (6.1.2 (c)) | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Offside Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Rear Brake lever excessively damaged |3.2.A1c| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Brake pedal attachment screws loose |3.1.2b| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Nearside Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Nearside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Offside Front Lower Motorcycle structure joining/attachment plate or fastening insecure Pinch bolts missing |6.1.1 |b| |i|| | 1 |
| Nearside Front Lower Motorcycle structure joining/attachment plate or fastening insecure Pinch bolts missing |6.1.1 |b| |i|| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Front Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Nearside Front Handlebar deformed |2.1.1b| | 1 |
| Offside Front Handlebar deformed |2.1.1b| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Upper Steering lock stop maladjusted |2.1.3| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Front position lamp missing |1.1.1a| | 1 |
| Offside Front position lamp missing |1.1.1a| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Nearside Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Offside Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Nearside Headlamp aim not tested |1.6| | 1 |
| Offside Headlamp aim not tested |1.6| | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Stop lamp not working Rear brake pedal switch. (4.3.1 (a) (ii)) | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Rear Lower Shock absorber has an excessively worn bush |5.3.2 |c|| | 1 |
| Fuel tank insecure |6.1.3 |a| |i|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Motorcycle structure is fractured and structural rigidity is significantly reduced Rear brake control mounting point |6.1.1 |a| |i|| | 1 |
| Nearside Front Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Offside Front Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Offside Front Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Fuel system component leaking Fuel tap |6.1.3 |b| |i|| | 1 |
| Offside Rear Position lamp not working |4.2.1 |a|| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 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 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Rear Brake pedal is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Nearside Direction indicator obscured |1.5.1a| | 1 |
| Offside Direction indicator obscured |1.5.1a| | 1 |
| Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Stop lamp insecure |1.3.3b| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Centre Front Upper Horn not working |1.7.3a| | 1 |
| Offside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Centre Front Upper Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Offside Front Upper Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Rear Upper Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |