| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 42 |
| Registration plate issues | 13 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Rear reflector on motorcycle missing |1.4.1| | 13 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Riders seat insecure |6.2.1a| | 4 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Horn not working |1.7.3a| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Fuel system component leaking |7.2.1a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Outer Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 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 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front position lamp missing |1.1.1a| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Riders seat insecure refit |6.2.1a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock refit cable |2.1.4| | 1 |
| Rear Shock absorber has negligible damping effect Very stiff next to no damping (5.3.2 (b)) | 1 |
| Rear Brake caliper operating mechanism has excessive travel (1.1.16 (e) (i)) | 1 |
| Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Headlamp aim projected beam image obviously incorrect headlamp dip beam kick up to the right (4.1.2 (c)) | 1 |
| Shock absorber has a serious fluid leak right hand front fork seal leaking badly (5.3.2 (b)) | 1 |
| Chain guard insecure missing |6.1.7 |i|| | 1 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected sticking |6.2.7 |a| |ii|| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Brake performance not tested front brake has no pressure |3.3| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Nearside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Sidecar rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Front Upper Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Offside Front Upper Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front Upper Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Nearside Front Brake locking device missing |3.2.A1e| | 1 |
| Centre Front suspension assembly has an insecure fork brace |2.3.4d| | 1 |
| Front Plate brake test indicates a severely grabbing brake |3.3.B1b| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 1 |
| Rear Brake has no recorded effort at a wheel break line had air in the system/ blead lines and break now works fine |1.2.1 |a| |ii|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Brake hose damaged | 1 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Brake linkage excessively worn (1.1.15 (b)) | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Centre Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake lever insecure Locking device missing (1.1.2 (e) (i)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Fuel pipe damaged SPLIT |6.1.3 |c| |ii|| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Offside Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Drive chain fouling another component |6.2.1d| | 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 Riders seat insecure |6.2.1a| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |