| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 20 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 10 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 10 |
| Registration plate issues | 10 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 9 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 8 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Throttle operating incorrectly |6.2.1f| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| 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| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Offside Front Direction indicator not working |1.5.1c| | 6 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Nearside Front Footrest insecure |6.2.1a| | 5 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 4 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Registration plate lamp issues | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Horn not working |1.7.3a| | 4 |
| Steering damper ineffective |2.1.2d| | 4 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Stop lamp remains on when the brake is released |1.3.1e| | 3 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 2 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Brake pipe inadequately supported |3.2.B2b| | 2 |
| Rear Brake hose leaking fluid |3.2.B4| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Front brake disc in such a condition that it is seriously weakened | 2 |
| Front Brake disc|s| insecure |3.2.A1g| | 2 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Offside Front Brake disc|s| insecure |3.2.A1g| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Front Brake hose which buldges |3.2.B4| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Steering damper ineffective |2.1.4 |d| |i|| | 1 |
| Front Steering damper in such a condition that the steering action is impaired. steering damper leaking fluid |2.1.2d| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Rear Lower Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Offside Front Upper Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Brake disc|s| insecure |3.2.A1g| | 1 |
| Front Steering linkage component insecure fork brace loose and bolt missing |2.1.3 |a| |i|| | 1 |
| Nearside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Front Brake hose which buldges |3.2.B4| | 1 |
| Front Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Brake component has restricted free movement and operation is likely to be impeded outer disc pad seized not making contact with disc when brake applied. |3.2.A1h| | 1 |
| Offside Front Upper Brake hose leaking |1.1.12 |c|| | 1 |
| Brake performance not tested brake hose pin holed |1.2.1 |g|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Nearside Front Footrest insecure |6.2.12 |a|| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 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 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Offside Front Footrest insecure footrest cracked half way through |6.2.1a| | 1 |
| Front Steering damper ineffective |2.1.2d| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Brake hose damaged | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Steering linkage has excessive free play |2.2.2| | 1 |
| Rear Brake fluid reservoir insecurely mounted |3.2.B1a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Handlebar fouling on the fuel tank or bodywork on full lock traps hand |2.1.4 |b|| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Brake master cylinder severely damaged |3.2.B1b| | 1 |
| Front Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Central Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Offside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Nearside Indicator switch does not operate the direction indicators on the side selected |1.5.4| | 1 |
| Brake master cylinder fluid level dangerously low |3.2.B1d| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Upper Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Front Upper Direction indicator not working |1.5.1c| | 1 |
| Direction indicators not working N/S/ Front flasher not working |1.5.1c| | 1 |
| Stop lamp remains on when the brake is released Stop lamp on at all times |1.3.1e| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Rear An item not tested |Manual| | 1 |
| Offside Rear An item not tested |Manual| | 1 |
| Centre Front An item not tested |Manual| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on dip |1.1.3a| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Central Front Steering damper insecure Steering damper mounting bush worn to excess. |2.1.2d| | 1 |
| Stop lamp with a multiple light source more than 1/2 not functioning rear brake light bulb blown |4.3.1 |a| |ii|| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Nearside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Nearside Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Offside Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |