| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Registration plate issues | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Horn not working |1.7.3a| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Registration plate lamp issues | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| 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| | 2 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Front Footrest missing |6.2.1a| | 1 |
| Throttle operating incorrectly sticking |6.2.1f| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear mono-shock insecure |2.4.B.4| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Brake disc|s| securing bolt|s| missing |3.2.A1g| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Front Headlamp insecure |4.1.1 |c|| | 1 |
| Offside Front Brake component insecure |1.1.21 |c|| | 1 |
| Offside Rear Brake fluid reservoir fluid level significantly below minimum level |1.1.10 |d| |ii|| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Lower Engine mounting/bracket missing |6.1.8 |a| |ii|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Offside Front Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Offside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Brake hose damaged | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Offside Rear Upper Motorcycle structure joining/attachment plate or fastening insecure |6.1.1 |b| |i|| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Nearside Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Brake pedal is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear All position lamps do not illuminate immediately when switched on reg plate lamp |1.1.3a| | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Chain adjuster inscure |6.2.1h| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear wheel spindle securing nut|s| loose someone has left the nut very loose ! |2.4.A.2b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Brake performance not tested |3.3| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Drive chain worn to excess |6.2.1e| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Front Brake lever cracked |3.1.2c| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Brake lever cracked |3.1.2c| | 1 |
| Central Rear Lower Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Central Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake disc|s| is excessively distorted Right hand |3.2.A1m| | 1 |
| Offside Front Upper Position lamp switch insecure |1.1.4b| | 1 |