| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 65 |
| Registration plate issues | 15 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 13 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 8 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear reflector on motorcycle missing |1.4.1| | 6 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 5 |
| Riders seat insecure |6.2.1a| | 4 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 4 |
| Horn not working |1.7.3a| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 3 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Nearside Front Direction indicators not working |1.5.1c| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 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 Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| 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)) | 3 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Riders seat insecure |6.2.1a| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Registration plate lamp issues | 2 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Rear brake torque arm insecure |6.2.1h| | 1 |
| Rear Riders seat missing |6.2.1a| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Offside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Central Exhaust excessively deteriorated |7.1.1a| | 1 |
| Central Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement nut missing |6.1.8 |a| |i|| | 1 |
| Rear Brake pedal is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Centre Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Centre Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Headlamp light source and lamp not compatible |4.1.4 |c|| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Offside Brake pedal is inoperative |3.1.3c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Nearside Front Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Wheel spoke excessively loose 11 lose |5.2.2 |d|| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Engin Mount |6.2.1h| | 1 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Upper Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Lower Steering lock stop ineffective |2.1.3| | 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 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Wheel spoke excessively loose |4.2.1b| | 1 |
| Rear suspension bearing has excessive free play swing arm |2.4.A2a|i|| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| An item not tested |Manual| | 1 |
| Rear Stop lamp insecure |1.3.3b| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Rear wheel spindle loose |2.4.A.2b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Stop lamp not working front control |4.3.1 |a| |ii|| | 1 |
| Stop lamp not working rear control |4.3.1 |a| |ii|| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front wheel spindle loose |2.3.5a| | 1 |
| Parking brake: efficiency below requirements |3.7.B.7| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Suspension arm pin or bush excessively worn swingarm pivot |5.3.4 |a| |i|| | 1 |
| Nearside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Exhaust is leaking and excessively noisey The collector box is holed and blowing badly |7.1.1b| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Inner Fuel pipe leaking |7.2.1a| | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear 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 |
| Throttle operating incorrectly Throttle sticking (6.2.7 (a) (i)) | 1 |
| Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Brake component insecure Rear brake torque arm retaining nut split pin missing (1.1.21 (c)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Front Position lamp missing (4.2.1 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering linkage component modification unsafe Fork brace missing causing excessive deflection. (2.1.3 (f) (i)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Suspension component has excessive wear or free play (5.3.3 (d)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Rear Footrest missing (6.2.12 (a)) | 1 |
| Fuel cap leaking (6.1.3 (b) (i)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Nearside Handlebar mounting so insecure that steering is adversely affected (2.2.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Headlamp incorrect colour was showing green light (4.1.4 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect green bulb was fitted with no proper beam image (4.1.2 (c)) | 1 |
| Front Brake excessively binding front wheel hard to turn when also jacked up (1.2.1 (f)) | 1 |