| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 29 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 23 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 20 |
| Horn not working |1.7.3a| | 13 |
| Registration plate issues | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 11 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Registration plate lamp issues | 9 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Nearside Front Direction indicator not working |1.5.1c| | 5 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 4 |
| Offside Front Brake disc|s| insecure |3.2.A1g| | 4 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Nearside Front Direction indicators not working |1.5.1c| | 4 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Steering damper ineffective |2.1.2d| | 3 |
| Nearside Rear Footrest insecure |6.2.1a| | 3 |
| Offside Front Footrest insecure |6.2.1a| | 3 |
| Offside Footrest insecure |6.2.1a| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Brake hose leaking fluid |3.2.B4| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Rear Brake hose leaking |1.1.12 |c|| | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Brake disc|s| cracked |3.2.A1g| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Offside Rear Direction indicator insecure |1.5.3b| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Rear suspension bearing has excessive free play |2.4.A2a|i|| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Valve stem seriously damaged |5.2.3 |j|| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Steering damper ineffective |2.1.2d| | 2 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 2 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Front Steering damper ineffective Lost oil |2.1.4 |d| |i|| | 1 |
| Upper Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Nearside All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Nearside Rear Footrest insecure Bracket fractured |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Centre Rear Upper Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Lower Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Upper Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Lower Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Rear Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Front Upper Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front Upper Brake hose leaking fluid |3.2.B4| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Brake component worn and seriously reduced in strength DISC INSECURE |3.2.A1| | 1 |
| Exhaust excessively deteriorated LEAKING @ SILENCER BOX |7.1.1a| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Offside Front Front suspension assembly component cracked |2.3.1| | 1 |
| Offside Front Indicator switch defective |1.5.4| | 1 |
| Offside Brake caliper|s| insecure |3.2.A1j| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Drive chain worn to excess |6.2.1e| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Wheel damaged significantly reducing the original strength |4.2.1a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake indicates excessive fluctuation of brake effort 7 bars of fluctuation on roller tester (1.2.1 (e)) | 1 |
| Rear Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Plate brake test No brake control achieves an efficiency of 30%. |3.3.B2a| | 1 |
| Plate brake test Neither brake control achieves an efficiency of 25% |3.3.B2b| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Nearside Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Brake component leaking fluid |3.2.B4| | 1 |
| Steering damper in such a condition that the steering action is impaired. |2.1.2d| | 1 |
| Rear Brake component leaking fluid |3.2.B4| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Rear position lamp missing tail light inop. |1.1.1a| | 1 |
| Indicator switch defective |1.5.4| | 1 |
| Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Offside Front Brake disc|s| securing bolt|s| loose Floating disc mounting excessively worn |3.2.A1g| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Direction indicator not working Indicators will not cancel unless hazard lights are switched on and off |1.5.1c| | 1 |
| Offside Front Brake disc|s| securing bolt|s| loose |3.2.A1g| | 1 |
| Headlamp aim headlamp deteriorated and function impaired HID bulb fitted |1.2.3a| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Front Brake hose which buldges |3.2.B4| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Front position lamp incorrect colour blue side light |1.1.2a| | 1 |
| Front Roller brake test indicates a binding brake brake binding bad |3.3.A1a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort brake |3.3.A1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Front Brake disc|s| excessively worn Floating disc bobbins worn |possible Disc | |3.2.A1l| | 1 |
| Upper Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls indicators function at full lock |2.1.2b| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Upper Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake fluid contaminated |1.8 |a|| | 1 |
| Front Horn not working |1.7.3a| | 1 |