| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 31 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 16 |
| Rear reflector on motorcycle missing |1.4.1| | 7 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Horn not working |1.7.3a| | 4 |
| Front Steering headbearing has excessive free play |2.2.2| | 4 |
| Rear parking brake recording little or no effort | 3 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3 |
| Registration plate lamp issues | 3 |
| Motorcycle structure excessively corroded |6.1.1a| | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 3 |
| Registration plate issues | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Brakes imbalanced across an axle | 2 |
| Brake hose excessively deteriorated | 2 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Front position lamp incorrect colour |1.1.2a| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Rear Brake linkage clevis joint excessively worn |3.2.A1d| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Service brake efficiency below requirements (1.2.2 (a) (i)) | 2 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 2 |
| Rear Brake pedal is bent and the brake cannot be readily applied |3.1.3c| | 2 |
| Front Front mudguard insecure |2.3.7| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Horn not working |1.6.2a| | 2 |
| Front wheel spindle securing nut locking device insecure |9.2.8b| | 2 |
| Service brake: efficiency below requirements |3.7.B.7| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Front Horn not loud enough to be heard by another road user |1.6.2b| | 1 |
| Offside Rear Coil spring not correctly located |2.4.C.2| | 1 |
| Brake pipe excessively corroded | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 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 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Front suspension assembly has an insecure fork brace |2.3.4d| | 1 |
| Rear Brake back plate|s| insecure |3.2.A1j| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Front Brake pipe excessively damaged |3.2.B2a| | 1 |
| Rear Brake pipe excessively chafed |3.2.B2a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Rear Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Direction indicators not working |1.5.1c| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Rear Service brake has no recorded effort at a wheel both (1.2.1 (a) (ii)) | 1 |
| Fuel tank insecure (6.1.3 (a) (i)) | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Lower Rear mono-shock pivot excessively worn |2.4.B.4| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Footrest missing |6.2.1a| | 1 |
| Rear Lower Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Nearside Rear Lower Brake reaction bracket securing bolt|s| missing |3.2.A1j| | 1 |
| Nearside Rear Lower Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Front wheel spindle securing nut locking device missing |2.3.3a| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Front front brake binding |3.7.B.1| | 1 |
| Front Stop lamp not working |1.2.1b| | 1 |
| Centre Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Brake locking device missing |3.2.A1e| | 1 |
| Rear wheel spindle securing nut locking device insecure incorrect pin used |2.4.A.2b| | 1 |
| Front wheel spindle securing nut locking device insecure incorrect pin |2.3.3a| | 1 |
| Offside Front Brake component cracked and seriously reduced in strength |3.2.A1| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front suspension assembly component cracked |2.3.1| | 1 |
| Footrest insecure |6.2.1a| | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear reflector missing both (4.8.2 (a) (ii)) | 1 |
| Front Position lamp missing (4.2.1 (a) (ii)) | 1 |
| Brake performance not tested Both rear brakes are binding |1.2.1 |g|| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Brake pivot locking device insecure |3.5.1l| | 1 |
| Brake lever has inadequate reserve travel |9.3.1f| | 1 |
| Nearside Footrest insecure |9.6.1| | 1 |
| Offside Footrest insecure |9.6.1| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Nearside Exhaust system not adequately supported |7.1.1| | 1 |
| Offside Rear Mechanical brake component locking device insecure |3.5.1l| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Vehicle structure has a fracture which adversely affects braking or steering |6.1.A.1| | 1 |
| Brake lever locking device insecure |3.5.1l| | 1 |
| Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Central Front Service brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned |1.4.A.2b| | 1 |
| Offside Rear Direction indicator obviously incorrectly positioned |1.4.A.2b| | 1 |
| Offside Stop lamp not working |1.2.1b| | 1 |
| Steering headbearing has excessive free play |9.2.4| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Shock absorbers has a serious fluid leak |5.3.2 |b|| | 1 |
| Brake cable insecure |1.1.15 |c|| | 1 |
| Front Shock absorbers damaged to the extent that it does not function |5.3.2 |b|| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Central Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Offside Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |9.2.2a| | 1 |
| Rear reflector missing |1.5.1a| | 1 |
| Rear Shock absorber has negligible damping effect |2.7.5| | 1 |
| Brake master cylinder insecurely mounted |3.6.G.1a| | 1 |
| Nearside Rear wheel cylinder securing device missing |3.5.1j| | 1 |
| Drive shaft uj which forms part of the suspension has an inadequately locked flange bolt |2.4.G.4c| | 1 |
| Steering system excessively rough |2.2.D.1| | 1 |
| Nearside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Nearside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Brake pedal is positioned so that the brake cannot be readily applied |3.1.3c| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Nearside Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Motorcycle structure adversely modified |6.1.1b| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Nearside Rear reflector missing |1.5.1a| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Driver`s seat insecure |6.2.A.1| | 1 |
| Offside Obligatory mirror missing |8.1.1| | 1 |
| Nearside Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Offside Rear Direction indicators not working |1.4.A.2c| | 1 |
| Nearside Rear Direction indicators incorrect colour |1.4.A.2f| | 1 |
| Rear Additional braking device has inadequate clearance between other components |3.6.I.2| | 1 |
| Front Steering column shaft has excessive end float |2.1.3| | 1 |
| Front Front wheel spindle securing nut locking device missing |9.2.8b| | 1 |
| Front Front wheel bearings have excessive free play |9.2.8c| | 1 |
| Rear Shock absorber has an excessively worn linkage |2.7.4| | 1 |
| Offside Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Direction indicator insecure |1.4.A.2b| | 1 |
| Rear fog lamp tell tale not working |1.3.1b| | 1 |
| Centre Rear fog lamp not working |1.3.2b| | 1 |
| Offside Front shock absorber leaking oil |9.2.7b| | 1 |
| Lower Front suspension assembly component restricted in operation |9.2.5e| | 1 |
| Sub-frame attachment bracket/mounting insecure |2.4.G.1| | 1 |
| Rear Brake pedal functionally incomplete |3.3.A.1a| | 1 |
| Steering column top bearing excessively worn |2.1.2c| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Rear Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |