| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 17 |
| Rear reflector on motorcycle missing |1.4.1| | 12 |
| Registration plate issues | 11 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 6 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| 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| | 4 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Direction indicators not working |1.5.1c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Nearside Footrest insecure |6.2.1a| | 2 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Offside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Inner Front Upper Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Outer Rear mono-shock insecure |2.4.B.4| | 1 |
| Rear mono-shock insecure bolt missing |2.4.B.4| | 1 |
| Motorcycle structure adversely modified engine mounting bolts |6.1.1b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Brake locking device missing |3.2.A1e| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Wheel bearing has excessive play *** cannot be checked- brake binding*** (5.1.3 (a) (i)) | 1 |
| Wheel excessively distorted *** cannot be checked- brake binding*** (5.2.2 (c) (i)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure speedo cable (6.1.1 (b) (i)) | 1 |
| Front Valve stem seriously damaged perished (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged perished (5.2.3 (j)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Rear Wheel fixing missing (single fixing) splitpin missing (5.2.1 (a) (ii)) | 1 |
| Rear Wheel bearing has excessive play wheel loose (5.1.3 (a) (i)) | 1 |
| Drive chain sprocket excessively loose sprocket carrier -wheel loose (6.1.7 (c) (i)) | 1 |
| Brake performance not tested front binding and rear wheel loose (1.2.1 (g)) | 1 |
| Front Brake hose which buldges |3.2.B4| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 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 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Brake performance not tested |3.3| | 1 |
| Rear Brake performance not tested |3.3| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 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 |
| 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 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake disc|s| cracked |3.2.A1g| | 1 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Offside Handlebar mounting clamp bolt missing |2.1.1a| | 1 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Footrest missing |6.2.1a| | 1 |
| Offside Handlebar deformed |2.1.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Rear Brake disc|s| insecure |3.2.A1g| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake cylinder severely corroded |3.2.B1b| | 1 |
| Chain guard fouling another component |6.2.1c| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Gradient brake test indicates a sticking brake |3.3.D1c| | 1 |
| Rear Gradient brake test indicates a severely juddering brake |3.3.D1d| | 1 |
| Nearside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Horn is not a constant note |1.7.3c| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |