| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 20 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 9 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear reflector on motorcycle missing |1.4.1| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Drive chain worn to excess |6.2.1e| | 5 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Registration plate issues | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 4 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Nearside Rear Footrest missing |6.2.1a| | 3 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Front suspension has inadequate damping effect. |2.3.6c| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Horn not working |1.7.3a| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Drive chain excessively loose |6.2.1d| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Nearside Rear Drive chain excessively loose |6.2.1d| | 2 |
| Drive chain sprocket carrier worn to excess |6.2.1e| | 2 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Brake pedal has insufficient reserve travel hits exhaust (1.1.2 (a)) | 2 |
| Throttle operating incorrectly not returning (6.2.7 (a) (i)) | 2 |
| Rear All direction indicators obviously incorrectly positioned dose not have 180mm between indicators (4.4.3 (a)) | 2 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Offside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 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 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Handlebar restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 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 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Front Brake caliper insecure |1.1.16 |c| |i|| | 1 |
| Front Brake caliper inadequately mounted and braking performance affected brake not for the caliper so not working correctly within the piston range |1.1.16 |c| |ii|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Rear Wheel spindle or securing nut|s| so insecure that wheel security or steering control is adversely affected s/pin missing |5.2.1 |c| |ii|| | 1 |
| Nearside Brake lining|s| contaminated by oil or grease |3.2.A1k| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5| | 1 |
| Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front All position lamps not working |4.2.1 |a|| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Brake disc contaminated Fork oil. |1.1.14 |b|| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 1 |
| Rear Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Central Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Brake reaction bracket insecure |3.2.A1j| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition aftermarket exhaust silencers with baffles fitted |8.1.1 |a|| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front shock absorber seal failed and leaking oil lefthand |2.3.3| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Offside Front Direction indicator not working |1.5.1c| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp incorrect colour (4.1.4 (a)) | 1 |
| Nearside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Fuel pipe union leaking |7.2.1a| | 1 |
| Centre Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |