| Most common failures | No# failures |
|---|
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 19 |
| Headlamp aim out of alignment | 19 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 15 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 11 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 9 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 8 |
| Registration plate issues | 7 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 5 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 4 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Front wheel bearings have excessive free play |2.3.5b| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 3 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3 |
| Registration plate lamp issues | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Sidecar wheel bearings have excessive free play |5.2.3c| | 2 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 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 Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Front Service brake excessively binding (1.2.1 (f)) | 2 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Brake pipe excessively corroded | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Nearside Stop lamp not working |1.2.1b| | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Horn not working |1.7.3a| | 1 |
| Offside Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Offside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Lower Exhaust excessively deteriorated |7.1.1a| | 1 |
| Offside Rear Lower Exhaust excessively deteriorated both exhaust joint have rusted away and are leaking. |7.1.1a| | 1 |
| Offside Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Headlamp not working on dipped beam |1.7.5a| | 1 |
| Headlamp not working on main beam |1.7.5a| | 1 |
| Front Stop lamp not working brake stop light switch not working |1.2.1b| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Front Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 1 |
| Nearside Front Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Offside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Front Brake hose excessively kinked |3.2.B3a| | 1 |
| Offside Sidecar wheel bearings have excessive free play |5.2.3c| | 1 |
| Nearside Sidecar wheel bearings have excessive free play |5.2.3c| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Offside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Front Sidecar direction indicator not working |1.5.1c| | 1 |
| Rear Sidecar direction indicator not working |1.5.1c| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Centre Front Gradient brake test indicates a sticking brake |3.3.D1c| | 1 |
| Centre Rear Gradient brake test indicates a sticking brake |3.3.D1c| | 1 |
| Nearside Lower Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Hydraulic brake control creeps under load. |3.1.4a| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Central Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Central Steering headbearing has excessive free play |2.2.2| | 1 |
| Offside Front Brake lever has abnormal movement of levers indicating maladjustment |3.5.1f| | 1 |
| Front Headlamp not in good working order adversely affecting beam image |1.2.4a| | 1 |
| Nearside Rear position lamp|s| excessively damaged so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Offside Rear position lamp|s| excessively damaged so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Front shock absorber leaking oil |9.2.7b| | 1 |
| Offside Front shock absorber leaking oil |9.2.7b| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Headlamp switch faulty no dip beam or rear lights on dip beam position |1.2.4| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. swinging arm |2.4.A.2d| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Stop lamp|s| not working on foot |4.3.1 |a| |ii|| | 1 |
| Offside Rear Service brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Stop lamp(s) remains on when the brakes are released front brake (4.3.2 (a) (iii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Towbar attachment likely to become detached |6.1.6 |c| |ii|| | 1 |
| Front Fork yoke excessively corroded. |2.1.1b| | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Position lamp switch allows the rear position lamp to be switched off when the headlamp|s| are on |4.2.2 |a|| | 1 |
| Position lamp switch does not illuminate all position lamps with a single operation |4.2.2 |a|| | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Roller brake test brake efficiency less than 27.5% overall |1.2.2 |a| |ii|| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Centre Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front 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 |
| Roller brake test brake efficiency less than 27.5% overall (1.2.2 (a) (ii)) | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Nearside Rear Brake component leaking fluid BRAKE CALIPER |3.2.B4| | 1 |
| Rear Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Brake lever has inadequate reserve travel |9.3.1f| | 1 |
| Nearside Rear Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Parking brake efficiency below requirements (1.4.2 (a) (i)) | 1 |
| Offside Front Shock absorbers has a serious fluid leak | 1 |
| Nearside Front Shock absorbers has a serious fluid leak | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure FRONT MUDGUARD (6.1.1 (b) (i)) | 1 |
| Front Footrest insecure FOOT REST FITTED WRONG WAY ROUND (6.2.12 (a)) | 1 |
| Offside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| An item not tested |Manual| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 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 |
| Parking brake lever inappropriately modified |3.1.8| | 1 |
| Offside Rear Additional braking device leaking oil |3.6.I.6| | 1 |
| Nearside Rear Additional braking device leaking oil |3.6.I.6| | 1 |
| Offside Brake cable has wires broken and is significantly weakened |3.5.1b| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Stop lamp switch with a delay in operation |4.3.2 |a| |ii|| | 1 |
| Offside Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Front Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Nearside Rear reflector missing |1.5.1a| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Offside Exhaust mounting missing |7.1.1c| | 1 |
| Nearside Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Offside Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Nearside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |