| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 15 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 6 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 5 |
| Horn not working |1.7.3a| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 3 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 3 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Steering headbearing in such a condition that steering control is adversely affected |2.2.2 |f| |ii|| | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Front Position lamp not working |4.2.1 |a|| | 2 |
| Horn not working |7.7 |a| |ii|| | 2 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 2 |
| Rear Position lamp not working (4.2.1 (a)) | 2 |
| Offside Front Brake fluid not visible |1.1.10 |d| |iii|| | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Offside Front Direction indicator lens defective such that the emitted light is adversely affected |4.4.1 |b| |ii|| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Stop lamp not working front brake light switch failed |4.3.1 |a| |ii|| | 1 |
| Rear Brake lever so insecure that the brake cannot be readily applied (1.1.2 (e) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Brake has no recorded effort at a wheel |1.2.1 |a| |ii|| | 1 |
| Brake master cylinder leaking sight glass broken |1.1.10 |b| |ii|| | 1 |
| Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Brake caliper inadequately mounted bracket bent |1.1.16 |c| |i|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Offside Front Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Riders seat insecure |6.2.5 |a| |ii|| | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front Headlamp aim not tested |4.1.2 |b|| | 1 |
| Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Nearside Rear All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Throttle operating incorrectly Throttle sticking open and sticking in operation (6.2.7 (a) (i)) | 1 |
| Front Exhaust has a major leak of exhaust gases pipe to cylinder barrel (6.1.2 (a)) | 1 |
| Front Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Front Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Position lamp light intensity significantly reduced |4.2.3 |a| |ii|| | 1 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Brake lining(s) less than 1.0 mm thick (1.1.13 (a)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Wheel damaged or distorted to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (c) (ii)) | 1 |
| Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Lower Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Offside Front Brake lever is positioned so that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Steering operation restricted in free movement from lock to lock front fairings |2.1.4 |c|| | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Rear Position lamp likely to become detached |4.2.1 |c| |ii|| | 1 |
| Brake lever has abnormal movement of levers indicating excessive wear or maladjustment |1.1.15 |f|| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Exhaust is leaking and excessively noisey requires check - fuse blew when operating starter motor |7.1.1b| | 1 |
| Nearside Rear Brake lever mounting insecure |3.1.2a| | 1 |
| Front Upper Suspension component ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Nearside Handlebar mounting insecure |2.2.1 |a| |i|| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Steering headbearing excessively stiff or notchy stiff to excess (2.2.2 (f) (i)) | 1 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering catching on steering lock |2.1.2a| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling FRONT YOKE BENT FROM BOTTOM OF STEM |2.4 |a|| | 1 |
| Wheel alignment incorrect which adversely affects the steering FRONT YOKE BENT FROM BOTTOM OF STEM |2.4 |a|| | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Brake caliper insecure |1.1.16 |c| |i|| | 1 |
| Offside Front Brake fluid reservoir fluid not visible |1.1.10 |d| |iii|| | 1 |
| Offside Front Brake master cylinder leaking no inspection glass / broke |1.1.10 |b| |ii|| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Front Footrest insecure body pannels loose |6.2.12 |a|| | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced body pannels loose / broken |6.1.1 |b| |ii|| | 1 |
| Nearside Motorcycle structure joining/attachment plate or fastening insecure body pannels loose and broken |6.1.1 |b| |i|| | 1 |
| Offside Motorcycle structure joining/attachment plate or fastening insecure body pannels loose and broken |6.1.1 |b| |i|| | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Headlamp aim projected beam image obviously incorrect head light to dim (4.1.2 (c)) | 1 |
| Headlamp light intensity severely reduced (4.1.4 (a)) | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Nearside Fuel system component leaking |7.2.1a| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Lower Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Headlamp aim headlamp deteriorated and function impaired bulbs giving no pattern |1.2.3a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear control |1.3.1a| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Upper Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Nearside Front Forks excessively corroded (2.2.2 (d) (i)) | 1 |
| Offside Front Forks excessively corroded (2.2.2 (d) (i)) | 1 |
| 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 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Brake master cylinder leaking |1.1.10 |b| |ii|| | 1 |
| Offside Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Nearside Rear Direction indicator likely to become detached (is detached) (4.4.1 (c) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Rear Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Front Position lamp not working Both (4.2.1 (a)) | 1 |
| Central Front Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 1 |