| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 46 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 16 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 14 |
| Registration plate issues | 12 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 11 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 10 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Stop lamp remains on when the brake is released |1.3.1e| | 10 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 9 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 9 |
| Steering damper ineffective |2.1.2d| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Throttle operating incorrectly |6.2.1f| | 7 |
| Offside Front Direction indicator not working |1.5.1c| | 6 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Registration plate lamp issues | 5 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Offside Front Brake disc|s| insecure |3.2.A1g| | 4 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 4 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Horn not working |1.7.3a| | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Headlamp light source and lamp not compatible (4.1.4 (c)) | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake component leaking fluid |3.2.B4| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Steering damper ineffective |2.1.4 |d| |i|| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Front Brake master cylinder fluid level dangerously low |3.2.B1d| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Front Brake hose leaking fluid |3.2.B4| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Nearside 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 Front 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 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Front mudguard insecure |2.3.7| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Rear Brake disc|s| insecure |3.2.A1g| | 1 |
| Front Shock absorber insecurely attached lower bolt has nut missing (5.3.2 (a) (i)) | 1 |
| Front Shock absorber insecurely attached top attached at top of shocker (5.3.2 (a) (i)) | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake pipe excessively corroded | 1 |
| Rear suspension bearing has excessive free play swinging arm |2.4.A2a|i|| | 1 |
| Central Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Service brake efficiency less than 50% of the required value |1.2.2 |a| |ii|| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Central Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Brake performance not tested |3.3| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front Brake hose which buldges |3.2.B4| | 1 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Inner Direction indicator not working |1.5.1c| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Front Footrest missing |6.2.1a| | 1 |
| Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Steering damper ineffective leaking |2.1.4 |d| |i|| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Sidecar rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Sidecar front position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Centre Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Stop lamp remains on when the brake is released front and rear |1.3.1e| | 1 |
| Rear Brake disc|s| excessively worn rear pads down to metal scraping disc |3.2.A1l| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Rear Upper Brake hose excessively twisted |3.2.B3a| | 1 |
| Front Lower Brake excessively binding |1.2.1 |f|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Front Brake lever excessively chafed |3.2.A1a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Steering movement excessively stiff with the wheel raised Steering damper seized |2.2.1b| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Offside Rear Lower Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Front Footrest insecure broken |6.2.1a| | 1 |
| Front All position lamps not working |4.2.1 |a|| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Rear Brake pedal insecure |3.1.2a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Front Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Front Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Lower Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Brake lever excessively damaged |3.2.A1c| | 1 |
| Nearside Footrest missing |6.2.1a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Offside Front Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Offside Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Fairing insecure and likely to impede the steering Both Mirrors fouling fairings |2.1.2e| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Offside Front Footrest insecure (6.2.12 (a)) | 1 |
| Front Upper Riders seat insecure |6.2.1a| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Centre Exhaust excessively deteriorated |7.1.1a| | 1 |
| Rear suspension movement is excessively stiff very slow to return after being put load. |2.4.A.3b| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Front Suspension component ball joint dust cover no longer prevents the ingress of dirt |5.3.4 |b| |ii|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Steering control handlebar movement restricted by trapped cables |2.1.2c| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Offside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Throttle operating incorrectly not returning freely |6.2.7 |a| |i|| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Steering damper in such a condition that the steering action is adversely affected (2.1.4 (d) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Footrest insecure R/H/F broken |6.2.12 |a|| | 1 |
| Front Brake component is excessively corroded |3.1.5| | 1 |
| Rear Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Rear Brake pedal attachment screws loose |3.1.2b| | 1 |
| Offside Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Brake component is severely distorted |3.1.5| | 1 |