| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 25 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 9 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 7 |
| Registration plate issues | 6 |
| Drive chain excessively loose |6.2.1d| | 6 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 5 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 5 |
| Registration plate lamp issues | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 3 |
| Rear suspension component seized |2.4A2a|ii|| | 3 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.5.1| | 3 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 3 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Offside Front Direction indicator insecure |1.5.3b| | 2 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Rear Drive chain excessively loose |6.2.1d| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Centre Exhaust excessively deteriorated |7.1.1a| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Drive chain worn to excess |6.2.1e| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Rear mono-shock pivot seized |2.4.B.4| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Stop lamp not working from front brake operation. |4.3.1 |a| |ii|| | 1 |
| Handlebar so insecure it is likely to become detached |2.2.1 |b| |ii|| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Centre Front Upper Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Nearside Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Front Brake disc contaminated |1.1.14 |b|| | 1 |
| Rear Brake disc contaminated |1.1.14 |b|| | 1 |
| Exhaust is leaking and excessively noisey holed at link pipe |7.1.1b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Drive chain sprocket worn to excess sprocket carrier bearing/ rubbers |6.1.7 |c| |i|| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Rear Shock absorber has negligible damping effect locked /stiff |5.3.2 |b|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Wheel fixing missing |single fixing| split pin pissing |5.2.1 |a| |ii|| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Brake performance not tested front brake locked |3.3| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Offside Exhaust has part of the system missing |7.1.1a| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Upper Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Upper Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Front Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Stop lamp does not illuminate immediately a brake applies Front brake switch. |1.3.1a| | 1 |
| Brake performance not tested Disc pads missing from rear caliper. |3.3| | 1 |
| Rear shock absorber has inadequate damping effect. Suspension unit not supporting machine. |2.4.A.3b| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Drive chain excessively loose |6.1.7 |c| |i|| | 1 |
| Rear Drive chain worn to excess |6.1.7 |c| |i|| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Horn control not readily accesible. |1.7.2a| | 1 |
| Horn not working |1.7.3a| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Offside Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Drive chain sprocket carrier worn to excess |6.2.1e| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear An item not tested |Manual| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension exhaust muffler |2.4.A.3a| | 1 |
| Throttle operating incorrectly not returning properly |6.2.1f| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 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 |
| Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Stop lamp does not illuminate immediately a brake applies front lever |1.3.1a| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Brake component insecure (1.1.21 (c)) | 1 |
| Rear Brake caliper inadequately mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition downpipe balance pipe corroded away (8.1.1 (a)) | 1 |
| Front Stop lamp not working switch (4.3.1 (a) (ii)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Headlamp aim beam image kick-up is to the offside (1.6.1) | 1 |
| Throttle operating incorrectly fails to shut down correctly on right lock (6.2.7 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Brake indicates excessive fluctuation of brake effort oil contamination from n/s fork seals (1.2.1 (e)) | 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 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Offside Handlebar mounting insecure (2.2.1 (a) (i)) | 1 |
| Front Steering movement excessively stiff with the wheel raised (2.2.1b) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Front Valve stem seriously damaged Badly perished and split (5.2.3 (j)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle sticks open (6.2.7 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect kick off o/s/f (4.1.2 (c)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |