| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 42 |
| Rear reflector missing (4.8.2 (a) (ii)) | 36 |
| Headlamp aim out of alignment | 31 |
| Rear Position lamp not working (4.2.1 (a)) | 19 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 16 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 12 |
| Registration plate issues | 11 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 10 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 9 |
| Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Headlamp insecure (4.1.1 (c)) | 8 |
| 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)) | 7 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 7 |
| Rear Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 6 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 6 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 6 |
| Rear reflector missing |4.8.2 |a| |ii|| | 6 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Headlamp aim not tested (4.1.2 (b)) | 5 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 5 |
| Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 4 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 3 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 3 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 2 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Rear brake disc in such a condition that it is seriously weakened | 2 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Position lamp not working (4.2.1 (a)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Stop lamp not working Not working when front brake applied, works on rear brake lever |4.3.1 |a| |ii|| | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle housing insecure to handlebar (6.2.7 (a) (ii)) | 1 |
| Steering operation impeded by a fairing ignition switch not secure (2.1.4 (e)) | 1 |
| Offside Front Handlebar grip insecure to handlebar bar grip/throttle control not secure (2.2.1 (d) (ii)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure front panel not secure (6.1.1 (b) (i)) | 1 |
| Steering operation impeded by a fairing front panel catches on rotation of steering (2.1.4 (e)) | 1 |
| Rear Brake disc significantly and obviously worn excessively thin and scored (1.1.14 (a) (i)) | 1 |
| Central Rear Wheel fixing loose (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Nearside Front Lower Brake disc contaminated (1.1.14 (b)) | 1 |
| Central Rear Upper Position lamp not working (4.2.1 (a)) | 1 |
| Rear Wheel spoke cracked (5.2.2 (d)) | 1 |
| Steering linkage locking device ineffective steering stop |2.1.3 |d|| | 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 |
| Position lamp not working low beam |4.2.1 |a|| | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface reflector covered by l plate (4.8.1 (a) (ii)) | 1 |
| Headlamp reflector missing (4.1.1 (b) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Central Front Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Rear reflector missing covered by l plate (4.8.2 (a) (ii)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure BODY PANEL (6.1.1 (b) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering |6.1.1 |a| |ii|| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Stop lamp likely to become detached (4.3.1 (c) (ii)) | 1 |
| Rear All position lamps not working |4.2.1 |a|| | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp showing white light to the rear (4.3.3 (a) (ii)) | 1 |
| Rear reflector missing covered over so not visable (4.8.2 (a) (ii)) | 1 |
| Stop lamp not working bulb (4.3.1 (a) (ii)) | 1 |
| Stop lamp showing white light to the rear |4.3.3 |a| |ii|| | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| 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 |
| Rear Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Central Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Front Headlamp aim not tested Lights not working (4.1.2 (b)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Wheel bearing has excessive play rear wheel play in hud or wheel beaing (5.1.3 (a) (i)) | 1 |
| Front Headlamp not working on dipped beam bulb replaced. (4.1.1 (a) (ii)) | 1 |
| Rear Position lamp not working side light not working. (4.2.1 (a)) | 1 |
| Stop lamp not working when both rear brake levers applied rear brake light not working. (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases loose at cylinder head (6.1.2 (a)) | 1 |
| Front Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Rear Position lamp showing white light to the rear lense discolored (4.2.3 (a) (ii)) | 1 |
| Nearside Brake fluid not visible rear brake (1.1.10 (d) (iii)) | 1 |
| Nearside Brake lever has insufficient reserve travel rear brake (1.1.2 (a)) | 1 |
| Headlamp aim unable to be tested bulb blown (4.1.2 (b)) | 1 |
| Nearside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Position lamp adversely affected by the operation of another lamp |4.2.3 |b|| | 1 |
| All direction indicators light intensity significantly reduced (4.4.3 (a)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Central Rear Position lamp not working bulb required (4.2.1 (a)) | 1 |
| Front Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Horn not working lubricated switch with WD40 (7.7 (a)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Front Stop lamp not working and rear (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Nearside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Offside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear Brake component inadequately mounted brake hose (1.1.21 (c)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock speedo assemblely (2.1.4 (a)) | 1 |
| Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Stop lamp lens defective such that the emitted light is adversely affected White light to the rear. (4.3.1 (b) (ii)) | 1 |
| Brake performance not tested Rear pads worn down to metal (1.2.1 (g)) | 1 |
| Rear Wheel bearing has excessive play play on wheel (5.1.3 (a) (i)) | 1 |
| Front Brake component insecure (1.1.21 (c)) | 1 |
| Rear Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect led fitted no pattern (4.1.2 (c)) | 1 |
| Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Front Upper Position lamp not working (4.2.1 (a)) | 1 |
| Front Lower Position lamp not working (4.2.1 (a)) | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Horn not working (7.7 (a) (ii)) | 1 |
| Front Steering operation impeded by a fairing (2.1.4 (e)) | 1 |
| Offside Rear Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp aim unable to be tested low beam (4.1.2 (b)) | 1 |
| Direction indicator obviously incorrectly positioned rear too close together (4.4.3 (a)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Front Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected insecure to handlebars (6.2.7 (a) (ii)) | 1 |
| Central Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Central All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front All direction indicators missing |4.4.1 |a| |ii|| | 1 |
| Offside Front All direction indicators missing |4.4.1 |a| |ii|| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |