| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 50 |
| Registration plate issues | 36 |
| Rear reflector on motorcycle missing |1.4.1| | 21 |
| 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 |
| Headlamp aim beam image kick up to the offside |1.6| | 11 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Horn not working |1.7.3a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 3 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Registration plate lamp issues | 2 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering Right hand switch gear fouling on fuel tank filler cap preventing full lock |2.1.2a| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Offside Front Upper Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Front Brake master cylinder defective but brake still operating |1.1.10 |b| |i|| | 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 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Brake grabbing severely offside brake lever can not be applied gradually |1.2.1 |c|| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Headlamp incorrect colour |1.2.1| | 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 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| Offside Footrest insecure |6.2.1a| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Centre Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front An item not tested |Manual| | 1 |
| Rear An item not tested |Manual| | 1 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Brake caliper insecure Slide mounts distorted allowing excess movement |1.1.16 |c| |i|| | 1 |
| Rear Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Rear Brake pedal spongy |3.3.B.1b| | 1 |
| Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Nearside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.4.A.2g| | 1 |
| Nearside Rear Brake pipe kinked |3.6.B.2b| | 1 |
| Offside Rear Brake pipe kinked |3.6.B.2b| | 1 |
| Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Stop lamp insecure |1.3.3b| | 1 |
| Brake hose damaged | 1 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Offside Front Footrest insecure |6.2.1a| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Dipswitch does not extinquish main beam/s, leaving at least 1 dipped beam headlamp |1.2.2b|i|| | 1 |
| Nearside Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake component is excessively corroded |3.1.5| | 1 |
| Headlamp insecure lens insecure |4.1.1 |c|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Headlamp aim not tested headlamp not working |4.1.2 |b|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Stop lamp obscured |1.3.1c| | 1 |
| Rear position lamp obscured more than 50% |1.1.1d| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Rear Rear reflector on motorcycle missing (1.4.1) | 1 |
| Nearside Front Roller brake test indicates a binding brake (3.3.A1a) | 1 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected Wheel alignment is out due to adjusters (5.2.1 (c) (ii)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear Parking brake mechanism/associated mounting prescribed area is fractured (1.1.21 (e) (i)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Stop lamp not working from front brake (4.3.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Offside Front Brake disc fractured (1.1.14 (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 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |