| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 49 |
| Registration plate lamp issues | 21 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 15 |
| Front Brake excessively binding (1.2.1 (f)) | 6 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 6 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Horn not working (7.7 (a)) | 5 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 4 |
| Front Position lamp not working (4.2.1 (a)) | 4 |
| Rear Brake excessively binding (1.2.1 (f)) | 4 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 3 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 3 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Stop lamp remains on when the brakes are released | 2 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Brake indicates excessive fluctuation of brake effort rear (1.2.1 (e)) | 2 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 2 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Rear Brake back plate insecure Torque arm bolt loose (1.1.14 (d)) | 1 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Handlebar fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Brake component insecure Torque arm split pin missing (1.1.21 (c)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Handlebar deformed to the extent that steering is affected (2.2.1 (c) (ii)) | 1 |
| Offside Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment BRAKE LEVER VERY NOTCHY & STIFF (1.1.15 (f)) | 1 |
| Rear Wheel spindle locking device missing TORQUE ARM SPLIT PIN MISSING (5.2.1 (d)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Rear Drive chain excessively tight CHAIN STRETCHED (6.1.7 (k) (i)) | 1 |
| Rear Drive chain excessively loose CHAIN STRETCHED (6.1.7 (c) (i)) | 1 |
| Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Forks excessively deformed twisted in yolk (2.2.2 (d) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling adjustment left required (2.4 (a)) | 1 |
| Handlebar excessively deformed (2.2.1 (c) (i)) | 1 |
| Brake component inadequately mounted split pin missing torque arm (1.1.21 (c)) | 1 |
| Offside Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Offside Front Brake excessively binding (1.2.1 (f)) | 1 |
| Brake rod insecure Split pin missing (1.1.15 (c)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Registration plate issues | 1 |
| Front Brake caliper insecurely mounted and braking performance affected (1.1.16 (c) (ii)) | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front Headlamp insecure Headlight bracket broken (4.1.1 (c)) | 1 |
| Clutch lever bent so it cannot be readily operated (6.2.7 (b)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Rear Brake component insecure brake stay split pin (1.1.21 (c)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Rear Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Front Steering operation restricted in free movement from lock to lock Steering lock bracket misaligned. (2.1.4 (c)) | 1 |
| Rear Brake pedal pivot excessively tight (1.1.1 (a)) | 1 |
| Offside Front Brake grabbing severely (1.2.1 (c)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Suspension attachment bracket/mounting insecure front mudguard insecure. (5.3.3 (a) (i)) | 1 |
| Clutch lever shortened so it cannot be readily operated clutch lever shortened and very sharp. (6.2.7 (b)) | 1 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Drive chain excessively loose ADJUSTED (6.1.7 (c) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect LED bulb fitted. (4.1.2 (c)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure Rear Torque arm, split pin missing (6.1.1 (b) (i)) | 1 |
| Front Brake lever pivot excessively tight (1.1.1 (a)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Drive chain horseshoe locking device likely to become detached (6.1.7 (j) (ii)) | 1 |
| Brake back plate insecure Brake back plate missing its locking device. (1.1.14 (d)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Front Headlamp aim unable to be tested (4.1.2 (b)) | 1 |
| Rear Brake component insecure reaction bracket has no split pins fitted (1.1.21 (c)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake component insecure split pin missing (1.1.21 (c)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Motorcycle structure joining/attachment plate or fastening insecure MUDGAURD FRONT (6.1.1 (b) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling ADJUSTMENT TO LEFT REQUIRED (2.4 (a)) | 1 |
| Brake component insecure Rear control arm security pin missing (1.1.21 (c)) | 1 |
| Brake grabbing severely Front brake lever pivot sticking (1.2.1 (c)) | 1 |
| Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 1 |
| Front Position lamp not working no low beam (4.2.1 (a)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Drive chain excessively loose adjusted to suit. (6.1.7 (c) (i)) | 1 |
| Offside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Rear Brake component insecure (1.1.21 (c)) | 1 |
| Brake performance unable to be tested (1.2.1 (g)) | 1 |
| Brake performance unable to be tested Rear brake seizing on. (1.2.1 (g)) | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Rear Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Offside Rear Brake pivot excessively corroded drum pivot corroded/ceased causing brake binding (1.1.15 (b)) | 1 |
| Rear Exhaust noise is clearly in excess of that emitted by a similar motorcycle fitted with a standard silencer in average condition no baffle (8.1.1 (a)) | 1 |