| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 10 |
| Stop lamp remains on when the brakes are released | 8 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 7 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 7 |
| Registration plate lamp issues | 7 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 6 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 6 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 6 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 5 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 5 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 4 |
| Nearside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 4 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 4 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 4 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 4 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Headlamp aim not tested (4.1.2 (b)) | 3 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 3 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 3 |
| Riders seat insecure (6.2.5 (a) (ii)) | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 3 |
| Registration plate issues | 3 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 3 |
| Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Horn not working |7.7 |a| |ii|| | 3 |
| Offside Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Rear Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 3 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Rear Brake caliper insecure |1.1.16 |c| |i|| | 2 |
| Headlamp aim not tested |4.1.2 |b|| | 2 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Offside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 2 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 2 |
| Rear Brake caliper insecure (1.1.16 (c) (i)) | 2 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Nearside Rear Direction indicator incorrect colour |4.4.3 |a|| | 2 |
| Offside Rear Direction indicator incorrect colour |4.4.3 |a|| | 2 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Offside Rear Direction indicator incorrect colour (4.4.3 (a)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| Rear reflector missing |4.8.2 |a| |ii|| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Headlamp dipped beam affected by the operation of another lamp High beam and low beam come on together |1.2.2c| | 1 |
| Front Position lamp adversely affected by the operation of another lamp and by steering (4.2.3 (b)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface covered by l plate (4.8.1 (a) (ii)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Rear Brake caliper inadequately mounted (1.1.16 (c) (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 |
| Front Shock absorber has a serious fluid leak both fork legs (5.3.2 (b)) | 1 |
| Handlebar mounting insecure moves independent to front forks when loaded (2.2.1 (a) (i)) | 1 |
| Stop lamp not working faulty rear brake stop light switch |4.3.1 |a| |ii|| | 1 |
| Rear Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake component insecure (1.1.21 (c)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Rear reflector reflecting white to the rear (4.8.2 (a) (ii)) | 1 |
| Rear Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced main stand (6.1.1 (b) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Nearside Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Rear Brake caliper inadequately mounted and braking performance affected |1.1.16 |c| |ii|| | 1 |
| Headlamp not working on main beam dim (4.1.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam Main beam tell tale illuminates when dipped beam selected (4.1.3 (b)) | 1 |
| Offside Rear Upper Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Offside Rear Rear suspension fouling which affects the movement of the rear suspension exhaust pipe was rubbing on the rear brake caliper which is mounted to the swinging arm. |2.4.A.3a| | 1 |
| Offside Rear suspension component loose right hand suspension support arm was loose |2.4.A.1a| | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface reflector fitted.standard reflector obscured by the l plate. |4.8.1 |a| |ii|| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Dipswitch does not operate immediately when selected on main beam |4.1.3 |b|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Exhaust system insecure |6.1.2 |a|| | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Position lamp switch does not operate in accordance with the requirements (4.2.2 (a)) | 1 |
| Front Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Rear Brake lever has abnormal movement of levers indicating excessive wear or maladjustment brake level travel to far (1.1.15 (f)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Front Fork yoke in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases flange (6.1.2 (a)) | 1 |
| Rear All direction indicators incorrect colour (4.4.3 (a)) | 1 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Nearside Rear Upper Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Rear Upper Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Nearside Front Stop lamp not working brake light switch |4.3.1 |a| |ii|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working Rear brake light inop |4.3.1 |a| |ii|| | 1 |
| Wheel bearing play so excessive it is likely to break up Rear wheel has excess movement, suspect wheel bearing has failed. |5.1.3 |a| |ii|| | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Exhaust has a major leak of exhaust gases Front pipe blowing at the cylinder head |6.1.2 |a|| | 1 |
| Nearside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Nearside Front Suspension rod corroded and seriously weakened (5.3.3 (b) (i)) | 1 |
| Offside Front Suspension rod corroded and seriously weakened (5.3.3 (b) (i)) | 1 |
| Offside Rear 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 |
| Nearside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Brake cylinder insecurely mounted and braking performance affected Front brake master cylinder insecure (1.1.16 (c) (ii)) | 1 |
| Headlamp not working on main beam Main beam not working and tell tale light stuck on (4.1.1 (a) (ii)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Headlamp incorrect colour (4.1.4 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Brake disc fractured |1.1.14 |a| |ii|| | 1 |
| Offside Brake lever not releasing correctly and functionality of brakes affected staying on (1.1.2 (b) (ii)) | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Shock absorber has a serious fluid leak both |5.3.2 |b|| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Rear brake disc in such a condition that it is seriously weakened | 1 |
| Brake hose excessively deteriorated | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure front mudgaurd insecure (6.1.1 (b) (i)) | 1 |
| Nearside Front Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 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 |
| Stop lamp not working inoperative from rear brake lever switch (4.3.1 (a) (ii)) | 1 |
| Front Brake excessively binding (unable to check wheel bearings) (1.2.1 (f)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear reflector on motorcycle obscured covered by L plate |1.4.2b| | 1 |
| Riders seat insecure cannot be locked in the closed position |6.2.1a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 1 |
| Offside Rear Shock absorber has a serious fluid leak ALSO WEAR AND PLAY IN BETWEEN MOVING COMPONENTS |5.3.2 |b|| | 1 |
| Shock absorber has negligible damping effect BOTH REAR SHOCK ABSORBERS |5.3.2 |b|| | 1 |
| Nearside Rear Shock absorber has a serious fluid leak ALSO WEAR AND PLAY IN BETWEEN MOVING COMPONENTS |5.3.2 |b|| | 1 |
| Front Brake hose bulging under pressure (1.1.12 (d)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear shock absorber has inadequate damping effect. both sides |2.4.A.3b| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Rear reflector missing obscured by " L" plate (4.8.2 (a) (ii)) | 1 |
| Front Shock absorber has a serious fluid leak fork seals leaking (5.3.2 (b)) | 1 |
| Rear Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Position lamp switch does not operate in accordance with the requirements Hi/lo beam wrong way around (4.2.2 (a)) | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Engine mounting/bracket excessively loose |6.1.8 |a| |ii|| | 1 |
| Rear Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Rear Shock absorber has negligible damping effect both (5.3.2 (b)) | 1 |
| Front Brake hose damaged and likely to fail (1.1.12 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Shock absorber has a serious fluid leak x2 |5.3.2 |b|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Front Position lamp not working side |4.2.1 |a|| | 1 |
| Offside All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Stop lamp not working front brake light switch (4.3.1 (a) (ii)) | 1 |
| Nearside Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Stop lamp not working When applying rear brake control (4.3.1 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Stop lamp not working lever (4.3.1 (a) (ii)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Front Suspension component mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Front Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Steering operation restricted in free movement from lock to lock |2.1.4 |c|| | 1 |
| Offside Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Front Direction indicator not working STOPS OPERATING WHEN HANDLEBARS ARE TURNED FROM LOCK TO LOCK (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator not working STOPS OPERATING WHEN HANDLEBARS ARE TURNED FROM LOCK TO LOCK (4.4.1 (a) (ii)) | 1 |
| Front Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Shock absorber has negligible damping effect rear shocks (5.3.2 (b)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Suspension arm pin or bush excessively worn engine mounting bushes excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Brake disc significantly and obviously worn buckled (1.1.14 (a) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect incorrectly wired (4.1.2 (c)) | 1 |
| Rear Brake component insecure brake caliper |1.1.21 |c|| | 1 |
| Rear Shock absorber has negligible damping effect offside and nearside |5.3.2 |b|| | 1 |
| Central Front Upper Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface |4.8.1 |a| |ii|| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Rear Shock absorber insecurely attached |5.3.2 |a| |i|| | 1 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Shock absorber has a serious fluid leak both front fork stanchions leaking fluid (5.3.2 (b)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced rack insecure (6.1.1 (b) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort fluctuation causing severe pulsing of brake laver (1.2.1 (e)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear reflector on motorcycle obscured |1.4.2b| | 1 |
| Front Steering operation impeded by a fairing |2.1.4 |e|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Front Brake lever so insecure that the brake cannot be readily applied |1.1.2 |e| |ii|| | 1 |
| Headlamp insecure |4.1.1 |c|| | 1 |
| Offside Rear Brake hose excessively stretched pipe insecure and stretching with suspension movement (1.1.12 (b) (ii)) | 1 |