| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 35 |
| Rear reflector on motorcycle missing |1.4.1| | 14 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| Registration plate issues | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Horn not working |1.7.3a| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Fuel system component leaking |7.2.1a| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Drive chain excessively tight |6.2.1d| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 2 |
| Front Direction indicators not working |1.5.1c| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 2 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 2 |
| Headlamp switch faulty |1.2.4| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| An item not tested |Manual| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear position lamp adversely affected by the operation of another lamp stop lamp |1.1.3b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Headlamp missing |1.2.3a| | 1 |
| Rear wheel spindle securing nut locking device missing No split pin. |2.4.A.2b| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush likely to become detached (5.3.4 (a) (ii)) | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 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 |
| Stop lamp missing |1.3.3a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Fuel system component leaking fuel switch |7.2.1a| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Front Wheel spindle locking device missing (5.2.1 (d)) | 1 |
| Front Headlamp insecure |1.2.3b| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen right hand kick up (4.1.2 (a)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride Front wheel spindle split pin missing. |6.2.1h| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Horn not working (7.7 (a) (ii)) | 1 |
| Horn missing |1.7.1| | 1 |
| Rear Stop lamp insecure |1.3.3b| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp aim projected beam image obviously incorrect beam kicks up to right (4.1.2 (c)) | 1 |
| Rear Footrest missing both pillion footrests missing (6.2.12 (a)) | 1 |
| Fuel system component leaking carbs? (6.1.3 (b) (i)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp aim beam image kick up to the offside (1.6) | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Offside Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Offside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Lower Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Upper Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Drive chain sprocket carrier worn to excess carrier bearing |6.2.1e| | 1 |
| Rear Stop lamp not working pedel (4.3.1 (a) (ii)) | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front 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 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride split link horse shoe |6.2.1h| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |