| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 28 |
| Rear reflector on motorcycle missing |1.4.1| | 27 |
| Headlamp aim beam image kick up to the offside |1.6| | 13 |
| Registration plate issues | 12 |
| 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| | 12 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 7 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 7 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Horn not working |1.7.3a| | 6 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 5 |
| Registration plate lamp issues | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Offside Rear Direction indicators not working |1.5.1c| | 4 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Nearside Front Direction indicator not working |1.5.1c| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Drive chain excessively loose |6.2.1d| | 3 |
| Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Chain guard insecure |6.2.1c| | 2 |
| Nearside Front Lower Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Offside Front Direction indicators not working |1.5.1c| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Nearside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Nearside Front Direction indicators not working |1.5.1c| | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Brake cylinder inadequately mounted lower bolt missing |1.1.16 |c| |i|| | 1 |
| Centre Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Offside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| An item not tested |Manual| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Brake disc|s| cracked |3.2.A1g| | 1 |
| Nearside Outer Front Direction indicator insecure |1.5.3b| | 1 |
| Offside Outer Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Outer Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Outer Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Outer Rear Brake hose fouling |3.2.B3b| | 1 |
| Exhaust markings indicating not for road use or similar wording |7.1.4| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front An item not tested |Manual| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Lower Gradient brake test indicates a binding brake |3.3.D1c| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Rear 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 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Front Handlebar deformed |2.1.1b| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies when rear brake is applied |1.3.1a| | 1 |
| Nearside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Drive chain excessively loose |6.2.1d| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Offside Front Upper Handlebar fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Offside Front Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear All direction indicators obviously incorrectly positioned less than 240mm distance apart |4.4.3 |a|| | 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 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Nearside Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |