| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 26 |
| Registration plate lamp issues | 13 |
| Horn not working |1.7.3a| | 11 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 11 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 7 |
| Registration plate issues | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Riders seat insecure |6.2.5 |a| |ii|| | 5 |
| Rear reflector on motorcycle obscured |1.4.2b| | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 5 |
| Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 5 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 4 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 4 |
| Front Position lamp not working (4.2.1 (a)) | 4 |
| All direction indicators not working (4.4.1 (a) (ii)) | 4 |
| Riders seat insecure (6.2.5 (a) (ii)) | 4 |
| Stop lamp remains on when the brakes are released | 4 |
| Headlamp aim not tested (4.1.2 (b)) | 4 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| All direction indicators not working |4.4.1 |a| |ii|| | 2 |
| Rear wheel spindle loose |2.4.A.2b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Rear wheel insecure |4.2.3b| | 2 |
| Front Wheel bearing so rough it is likely to overheat or break up |5.1.3 |b| |ii|| | 2 |
| Riders seat insecure |6.2.1a| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Horn not working |1.7.3a| | 2 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Brake hose damaged | 2 |
| Offside Front Position lamp not working (4.2.1 (a)) | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 2 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Horn not working (7.7 (a)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 2 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Headlamp switch faulty |1.2.4| | 1 |
| Steering movement excessively stiff with the wheel raised On right hand turn. |2.2.1b| | 1 |
| Front Brake disc significantly and obviously worn |1.1.14 |a| |i|| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Steering headbearing excessively stiff or notchy notchy |2.2.2 |f| |i|| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Exhaust mounting does not fully support the exhaust system rear mounting bolt loose - threads damaged |7.1.1.c| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Front position lamp does not illuminate immediately when switched on front side lights |1.1.3a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Nearside Front Lower Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Rear Rear wheel rotation likely to be impeded rear mudgard fouling on weel |6.2.1b| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Horn control defective interfears with lights |1.7.2a| | 1 |
| Brake lever has inadequate reserve travel control brake 2 |3.1.3b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam |4.1.3 |b|| | 1 |
| Front Position lamp not working |4.2.1 |a|| | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Riders seat insecure doesnt lock down at rear |6.2.1a| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Brake lever insecure |1.1.2 |e| |i|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |1.6.B.1| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Rear reflector on motorcycle obscured Under L Plate |1.4.2b| | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Offside Front Brake excessively binding |1.2.1 |f|| | 1 |
| Offside Front Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Central Front Wheel spoke excessively bent forkes bent |5.2.2 |d|| | 1 |
| Central Front Forks excessively deformed |2.2.2 |d| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Steering linkage insecure to the extent there is excessive movement at the mountings Head stock pinch bolt |2.1.3 |a| |ii|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Front Brake caliper insecurely mounted and braking performance affected |1.1.16 |c| |ii|| | 1 |
| Front Brake caliper insecure |1.1.16 |c| |i|| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride No side stand cut out switch fitted, permitting the machine to be ridden with the stand down. |6.2.1h| | 1 |
| Floor brake test indicates a binding brake Front brake caliper seized |3.3.C2c| | 1 |
| Riders seat insecure seat wont lock down |6.2.5 |a| |ii|| | 1 |
| Front Brake excessively binding |1.2.1 |f|| | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Steering movement excessively `notchy` with the wheel raised top and bottom bearings |2.2.1b| | 1 |
| Direction indicator not working all dir. indicators not working |1.5.1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Direction indicators not working All indicators not working |1.5.1c| | 1 |
| Steering operation impeded by a fairing front wheel on offside full lock |2.1.4 |e|| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on side light |1.1.3a| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Rear wheel rotation likely to be impeded Rear hugger loose and may affect rear wheel rotation |6.2.1b| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear suspension has a fracture of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Front Brake master cylinder insecure |1.1.10 |c|| | 1 |
| Front Steering lock stop loose Steering Stopper broken |2.1.3| | 1 |
| Front Direction indicator not working L/H |1.5.1c| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Brake lever has insufficient reserve travel |1.1.2 |a|| | 1 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 1 |
| Central Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Throttle control functioning such that safe operation of the motorcycle is adversely affected |6.2.7 |a| |ii|| | 1 |
| Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Nearside All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Offside All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |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 |
| Motorcycle structure is deformed and structural rigidity is significantly reduced centre stand bent and dangerous |6.1.1 |a| |i|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Front Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Brake excessively binding |1.2.1 |f|| | 1 |
| Nearside Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Headlamp light intensity severely reduced |4.1.4 |a|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Sticky |6.2.7 |a| |ii|| | 1 |
| Rear Wheel spindle or securing nut(s) so insecure that wheel security or steering control is adversely affected (5.2.1 (c) (ii)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Front Brake caliper inadequately mounted not sitting within brake disc area (1.1.16 (c) (i)) | 1 |
| Nearside Brake lever insecure Rear brake lever insecure (1.1.2 (e) (i)) | 1 |
| Offside Brake lever insecure Front brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front Brake excessively binding Front brake binding (1.2.1 (f)) | 1 |
| Rear brake binding | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 1 |
| Fork yoke in such a condition that steering control is adversely affected obviously bent (2.2.2 (d) (ii)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Brake disc significantly and obviously worn worn thin (1.1.14 (a) (i)) | 1 |
| Fuel cap leaking Fuel cap seal perished. (6.1.3 (b) (i)) | 1 |
| Steering headbearing excessively stiff or notchy Headbearings notchy. (2.2.2 (f) (i)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface obscured (4.8.1 (a) (ii)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Offside Rear Motorcycle structure has a fracture which is likely to adversely affect braking or steering mudguard attachment broken (6.1.1 (a) (ii)) | 1 |
| Rear Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Central Front Inner Headlamp not working on dipped beam headlight dip beam inoperable (4.1.1 (a) (ii)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock lock stop damaged/missing (2.1.4 (b)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Direction indicator not working all indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Rear Lower Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Brake pipe excessively corroded | 1 |
| Fuel cap ineffective Fuel cap seal perished (6.1.3 (b) (i)) | 1 |
| Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Front Brake excessively binding unable to turn wheel by hand (1.2.1 (f)) | 1 |
| Rear Shock absorber has negligible damping effect Shocker seized (5.3.2 (b)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Horn sound not in accordance with requirements (7.7 (c)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface covered by l plate (4.8.1 (a) (ii)) | 1 |
| Rear Wheel fixing loose (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Central Rear Upper Position lamp not working rear position lamps inoperable (4.2.1 (a)) | 1 |
| Central Rear Upper Stop lamp not working brake lights front and back inoperable (4.3.1 (a) (ii)) | 1 |
| Front Brake fluid reservoir fluid not visible (1.1.10 (d) (iii)) | 1 |
| Front Brake master cylinder leaking sight glass deteriorated. (1.1.10 (b) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak seal (5.3.2 (b)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Brake fluid reservoir fluid not visible glass broken
no fluid
lever and reservoir insecure (1.1.10 (d) (iii)) | 1 |
| Rear Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Rear Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Rear Brake lever has restricted free movement (1.1.15 (e)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Headlamp not working on dipped beam Bulb replaced (4.1.1 (a) (ii)) | 1 |
| Position lamp not working Bulb replaced (4.2.1 (a)) | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Brake linkage has restricted free movement (1.1.15 (e)) | 1 |
| Rear Wheel fixing loose (single fixing) Wheel nut (5.2.1 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork saels (5.3.2 (b)) | 1 |
| Central Front Inner Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Nearside Front Lower Brake excessively binding front brake binding excessively (1.2.1 (f)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Front Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Position lamp switch does not operate in accordance with the requirements Passing switch does not operate correctly (4.2.2 (a)) | 1 |
| Nearside Front Position lamp not working (4.2.1 (a)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Fuel system component leaking out of intake (6.1.3 (b) (i)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn Engine mounting bushes excessively worn (5.3.4 (a) (i)) | 1 |