| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 29 |
| Registration plate issues | 23 |
| Rear reflector on motorcycle missing |1.4.1| | 17 |
| Throttle operating incorrectly |6.2.1f| | 10 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 5 |
| Horn not working |1.7.3a| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 4 |
| Drive chain worn to excess |6.2.1e| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear Brake hose fouling |3.2.B3b| | 2 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Brake locking device missing |3.2.A1e| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Front Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Offside Front Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording end can.. |6.1.2 |c|| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Front An item not tested |Manual| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Nearside Fuel hose leaking |7.2.1a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| 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 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front Brake component is severely distorted |3.1.5| | 1 |
| Front shock absorber seal failed and leaking oil right hand side |2.3.3| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Steering lock stop maladjusted |2.1.3| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Direction indicator insecure |1.5.3b| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Offside Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Offside Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Horn control defective |1.7.2a| | 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 Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Rear spring worn and seriously weakened |2.4A1b|ii|| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Indicator switch defective |1.5.4| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 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 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Exhaust mounting missing |7.1.1c| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Nearside Front Front position lamp missing |1.1.1a| | 1 |
| Centre Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Outer Front Steering lock stop ineffective |2.1.3| | 1 |
| Offside Front Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Nearside Front Upper Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Centre Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| An item not tested |Manual| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Registration plate lamp issues | 1 |
| Nearside Rear Direction indicator with a multiple light source more than 1/2 not functioning |4.4.1 |a| |ii|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Rear Drive chain excessively tight |6.2.1d| | 1 |
| Offside Front Handlebar deformed |2.1.1b| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |