| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 10 |
| Horn not working (7.7 (a)) | 10 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 7 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 5 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 5 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 4 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 3 |
| Rear Position lamp not working (4.2.1 (a)) | 3 |
| Front Position lamp not working (4.2.1 (a)) | 3 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 3 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 3 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 3 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 3 |
| Registration plate lamp issues | 2 |
| Riders seat insecure (6.2.5 (a) (ii)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 2 |
| Upper Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 2 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Front Footrest insecure (6.2.12 (a)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Nearside Rear Footrest missing (6.2.12 (a)) | 2 |
| Exhaust system insecure (6.1.2 (a)) | 2 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Rear Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Suspension arm attachment bracket/mounting insecure swing arm bolt loose (5.3.3 (a) (i)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Nearside Footrest insecure gear change pedal (6.2.12 (a)) | 1 |
| Central Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Drive chain sprocket excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Brake grabbing severely (1.2.1 (c)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Drive chain sprocket excessively loose fixing bolt missing (6.1.7 (c) (i)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear Drive chain sprocket so loose it is likely to fail locking tabs not used (6.1.7 (c) (ii)) | 1 |
| Front Riders seat insecure (6.2.5 (a) (ii)) | 1 |
| Front Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Front Headlamp insecure (4.1.1 (c)) | 1 |
| Front Chain guard insecure (6.1.7 (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned broken (4.4.3 (a)) | 1 |
| Stop lamp not working Both (4.3.1 (a) (ii)) | 1 |
| Motorcycle structure is fractured and structural rigidity is significantly reduced broken for down tube (6.1.1 (a) (i)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Stop lamp not working Via front control (4.3.1 (a) (ii)) | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Rear Suspension arm ball joint likely to become detached swinging arm (5.3.4 (a) (ii)) | 1 |
| Front Brake disc insecure has a loose bolt partially sticking out (1.1.14 (a) (ii)) | 1 |
| Nearside Footrest insecure (6.2.12 (a)) | 1 |
| Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Brake rod insecure adjusting nut missing (1.1.15 (c)) | 1 |
| Brake performance unable to be tested rear operating rod insecure (1.2.1 (g)) | 1 |
| Front Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced steering attachment (6.1.1 (b) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy notchy (2.2.2 (f) (i)) | 1 |
| Front Brake fluid not visible (1.1.10 (d) (iii)) | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Front Motorcycle structure is fractured and structural rigidity is significantly reduced downtube just below headstock (6.1.1 (a) (i)) | 1 |
| Forks excessively deformed (2.2.2 (d) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Clutch lever positioned so it cannot be readily operated clutch dragging (6.2.7 (b)) | 1 |
| Front Brake master cylinder leaking Leaking from damaged sight glass (1.1.10 (b) (ii)) | 1 |
| Offside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Nearside Rear Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Registration plate issues | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Drive chain sprocket excessively loose bolt missing (6.1.7 (c) (i)) | 1 |
| Front Direction indicator not working both front indicators not working correctly - front nearside comes on when switched off (4.4.1 (a) (ii)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Stop lamp adversely affected by the operation of another lamp tail lamp and brake lamp incorrectly wired (4.3.3 (b)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Headlamp light intensity severely reduced both beams dull (4.1.4 (a)) | 1 |
| Position lamp not working tail lamp and brake lamp incorrectly wired (4.2.1 (a)) | 1 |
| Exhaust has a major leak of exhaust gases at front pipe connection to head (6.1.2 (a)) | 1 |
| Headlamp aim projected beam image obviously incorrect LED BULB (4.1.2 (c)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted Back to Front (6.1.7 (j) (i)) | 1 |
| Rear Stop lamp not working control 1 (4.3.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Fork yoke excessively deformed (2.2.2 (d) (i)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced Rear brake torque arm insecure (6.1.1 (b) (ii)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Front Wheel alignment incorrect which adversely affects the handling front forks twisted and loose (2.4 (a)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Brake performance unable to be tested (1.2.1 (g)) | 1 |
| Front Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Fork yoke insecure Yoke nut loose (2.2.2 (d) (i)) | 1 |
| Footrest insecure Mounting loose (6.2.12 (a)) | 1 |
| Brake component insecure (1.1.21 (c)) | 1 |
| Nearside Rear Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Stop lamp not working both (4.3.1 (a) (ii)) | 1 |
| Brake pedal is positioned so that the brake cannot be readily applied pedal fouling against exhaust (1.1.2 (d)) | 1 |
| Front Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Rear Drive chain sprocket so worn it is likely to fail Sprocket carrier bearing (6.1.7 (c) (ii)) | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Central Front Steering headbearing excessively stiff or notchy Headbearings notchy. (2.2.2 (f) (i)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 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 |
| Footrest insecure (6.2.12 (a)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls The brake light does not work when the front lever is pulled. (4.3.2 (a) (iii)) | 1 |
| Rear Drive chain sprocket excessively loose Carrier bearing (6.1.7 (c) (i)) | 1 |
| Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Offside Rear Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |