| Most common failures | No# failures |
|---|
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 38 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 33 |
| Headlamp aim out of alignment | 30 |
| Registration plate lamp issues | 26 |
| Stop lamp remains on when the brakes are released | 21 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 21 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 10 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 10 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 9 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 9 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 9 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 9 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 7 |
| Headlamp aim not tested (4.1.2 (b)) | 7 |
| Registration plate issues | 6 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 6 |
| Rear Position lamp not working (4.2.1 (a)) | 6 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 5 |
| Riders seat insecure (6.2.5 (a) (ii)) | 5 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 5 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 4 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 4 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 4 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 4 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 3 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 3 |
| Handlebar mounting insecure (2.2.1 (a) (i)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| Front Headlamp aim unable to be tested (4.1.2 (b)) | 3 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 2 |
| Front Brake disc contaminated (1.1.14 (b)) | 2 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 2 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Front Position lamp not working (4.2.1 (a)) | 2 |
| All direction indicators not working (4.4.1 (a) (ii)) | 2 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| 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)) | 2 |
| Front Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 2 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Handlebar retaining device loose |2.2.1 |b| |i|| | 1 |
| Rear Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Rear Brake lever has insufficient reserve travel lever (1.1.2 (a)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Front Headlamp aim not tested incorrect pattern (4.1.2 (b)) | 1 |
| Front Steering headbearing has excessive wear or free play head bearings too loose (2.2.2 (f) (i)) | 1 |
| Rear Stop lamp not working rear stop light not working (4.3.1 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam switch operates main beam and dipped beams back to front and vice versa (4.1.3 (b)) | 1 |
| Front Fork yoke excessively deformed (2.2.2 (d) (i)) | 1 |
| Front Forks excessively deformed (2.2.2 (d) (i)) | 1 |
| Offside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Riders seat insecure seat lock (6.2.5 (a) (ii)) | 1 |
| Offside Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected with wheel raised x/s play in bearing (2.2.2 (f) (ii)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Exhaust has a major leak of exhaust gases pipe split (6.1.2 (a)) | 1 |
| Front Position lamp switch does not operate in accordance with the requirements (4.2.2 (a)) | 1 |
| Front Brake grabbing severely master cyl piston needs lube (1.2.1 (c)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort disc bent (1.2.1 (e)) | 1 |
| Steering headbearing has excessive wear or free play ********* may need replacing ********** (2.2.2 (f) (i)) | 1 |
| Headlamp aim not tested no readable pattern-defective bulb (4.1.2 (b)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Handlebar mounting insecure handlebars loose (2.2.1 (a) (i)) | 1 |
| Headlamp aim not tested Bulb not working (4.1.2 (b)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect high/low beam incorrect way around (4.1.2 (c)) | 1 |
| Central Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Central Front Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Central Rear Lower Position lamp not working (4.2.1 (a)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Central Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Steering headbearing has excessive wear or free play excessive play in steering head bearings (2.2.2 (f) (i)) | 1 |
| Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Upper Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Brake lever insecure Rear brake lever - nut missing from mounting screw. (1.1.2 (e) (i)) | 1 |
| Front Brake hose excessively twisted (1.1.12 (b) (ii)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Offside Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Upper Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Nearside Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Rear Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure frcnt mudguard (6.1.1 (b) (i)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Motorcycle structure joining/attachment plate or fastening insecure side fairing (6.1.1 (b) (i)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Central Rear All position lamps not working tail light (4.2.1 (a)) | 1 |
| Front Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Front Steering headbearing in such a condition that steering control is adversely affected top + bottom (2.2.2 (f) (ii)) | 1 |
| Horn not working HORN INOP , NO SWITCH (7.7 (a)) | 1 |
| Headlamp aim not tested no bulb fitted (4.1.2 (b)) | 1 |
| Headlamp not working on main beam missing bulb (4.1.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam bulb missing (4.1.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy headbearings notchy (2.2.2 (f) (i)) | 1 |
| Steering headbearing has excessive wear or free play lower headearing check found play (2.2.2 (f) (i)) | 1 |
| Wheel fixing loose (single fixing) play in the rear wheel at its mounting point (5.2.1 (a) (ii)) | 1 |
| Front Brake disc significantly and obviously worn (1.1.14 (a) (i)) | 1 |
| Nearside Rear Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Rear Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Throttle operating incorrectly loose (6.2.7 (a) (i)) | 1 |
| Forks excessively deformed (2.2.2 (d) (i)) | 1 |
| Nearside Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Headlamp aim not tested ** no dip ** (4.1.2 (b)) | 1 |
| Exhaust has a major leak of exhaust gases big hole in silencer (6.1.2 (a)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort disc warped (1.2.1 (e)) | 1 |
| Horn not working (7.7 (a)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls wrong rear brake lever fitted (4.3.2 (a) (iii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak fork seal (5.3.2 (b)) | 1 |
| Front Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Nearside Brake lever has insufficient reserve travel LH Lever (Rear Brake) (1.1.2 (a)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Rear Brake performance unable to be tested Rear tire cannot be inflated (1.2.1 (g)) | 1 |
| Position lamp missing (4.2.1 (a)) | 1 |
| Front Steering headbearing has excessive wear or free play steering bearings too loose (2.2.2 (f) (i)) | 1 |
| Rear Shock absorber has an excessively worn bush rear suspension has a knock prob worn bush (5.3.2 (c)) | 1 |
| Front Engine mounting/bracket damaged or deteriorated resulting in excessive movement engine mounts have excess play (6.1.8 (a) (i)) | 1 |
| Front Stop lamp emits other than a steady red light front brake switch works intermitantly (4.3.3 (a) (ii)) | 1 |
| Front Brake excessively binding front brake is binding badly (1.2.1 (f)) | 1 |
| Headlamp aim unable to be tested dip beam inoperative (4.1.2 (b)) | 1 |
| Front Direction indicator incorrect colour both (4.4.3 (a)) | 1 |
| Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Stop lamp lens defective such that the emitted light is adversely affected (4.3.1 (b) (ii)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the handling handle bar to front wheel not aligned (2.4 (a)) | 1 |
| Direction indicator not working both rear (4.4.1 (a) (ii)) | 1 |
| Rear Position lamp adversely affected by the operation of another lamp (4.2.3 (b)) | 1 |
| Rear Position lamp lens seriously defective (4.2.1 (b)) | 1 |
| Front Suspension rod modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Front Exhaust has a major leak of exhaust gases down pipe (6.1.2 (a)) | 1 |
| Front Brake caliper insecure (1.1.16 (c) (i)) | 1 |
| Front Shock absorber has negligible damping effect Both front forks are leaking (5.3.2 (b)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Rear Position lamp likely to become detached (4.2.1 (c) (ii)) | 1 |
| Offside Rear Lower Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Nearside Front Brake caliper inadequately mounted and braking performance affected wrong calliper/bracket pads hardly touching disk (1.1.16 (c) (ii)) | 1 |
| Offside Front Brake master cylinder insecure (1.1.10 (c)) | 1 |
| Headlamp aim unable to be tested no dip beam (4.1.2 (b)) | 1 |
| Offside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 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 |
| Front Position lamp not working Low beam not working (4.2.1 (a)) | 1 |
| Offside Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Throttle operating incorrectly damaged insecure (6.2.7 (a) (i)) | 1 |
| Rear Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected effecting stop light switch operation (1.1.2 (b) (ii)) | 1 |