| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 11 |
| Rear reflector missing (4.8.2 (a) (ii)) | 9 |
| Front Brake excessively binding (1.2.1 (f)) | 7 |
| Registration plate lamp issues | 7 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 3 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 3 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 3 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| All direction indicators light intensity significantly reduced (4.4.3 (a)) | 1 |
| Front Brake lever insecure worn and loose (1.1.2 (e) (i)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Suspension arm pin or bush excessively worn Swing arm (5.3.4 (a) (i)) | 1 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Brake caliper leaking and braking performance affected (1.1.16 (b) (ii)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Lower Suspension component pin or bush excessively worn link (5.3.4 (a) (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 |
| Fuel cap ineffective stiff and can`t resecure |6.1.3 |b| |i|| | 1 |
| Offside Rear Direction indicator light intensity significantly reduced Less than 50% of LED lights working |4.4.3 |a|| | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle control is loose. |6.2.7 |a| |ii|| | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Fuel hose leaking (6.1.3 (b) (i)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn linkage (5.3.4 (a) (i)) | 1 |
| Front Shock absorber has a serious fluid leak L/h (5.3.2 (b)) | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Rear Motorcycle structure joining/attachment plate or fastening insecure chain adjuster plates loose (6.1.1 (b) (i)) | 1 |
| Stop lamp not working on foot and handle (4.3.1 (a) (ii)) | 1 |
| Offside Direction indicator not working both (4.4.1 (a) (ii)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Front Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Drive chain sprocket worn to excess front and rear sprockets (6.1.7 (c) (i)) | 1 |
| Exhaust silencer likely to become detached (8.1.1 (b) (ii)) | 1 |
| Exhaust system insecure downpipe (6.1.2 (a)) | 1 |
| Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced nearside footrest (6.1.1 (b) (ii)) | 1 |
| Suspension component mounting modified so the suspension is likely to fail other components footrest hitting swingarm not allowing travel. (5.3.3 (c) (ii)) | 1 |
| Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Front Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Rear Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Front Brake component modification unsafe broken brake lever very short (1.1.21 (d) (i)) | 1 |
| Front Chain guard insecure primary sprocket cover (6.1.7 (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle tube and switch insecure (6.2.7 (a) (ii)) | 1 |
| Nearside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Offside Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Rear Lower Shock absorber has an excessively worn bush Lower linkage. (5.3.2 (c)) | 1 |
| Chain guard insecure (6.1.7 (i)) | 1 |
| Rear Stop lamp not working Rear brake light switch (4.3.1 (a) (ii)) | 1 |
| Steering operation impeded by a fairing Mudguard fouling on fairing when turned to the right (2.1.4 (e)) | 1 |
| Front Brake hose leaking (1.1.12 (c)) | 1 |
| Registration plate issues | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Exhaust has a major leak of exhaust gases silencer broken (6.1.2 (a)) | 1 |
| Suspension rod attachment bracket/mounting insecure swing arm bolt loose (5.3.3 (a) (i)) | 1 |
| Offside Rear Footrest missing (6.2.12 (a)) | 1 |
| Front Lower Suspension component pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Rear Footrest missing both (6.2.12 (a)) | 1 |
| Nearside Steering operation fouling on the fuel tank or bodywork on full lock stop missing (2.1.4 (b)) | 1 |
| Front Wheel fixing loose (single fixing) (5.2.1 (a) (ii)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Drive chain so loose it is likely to fail needs ajusting and lubing (6.1.7 (c) (ii)) | 1 |
| Offside Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle housing insecure (6.2.7 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Footrest missing both pillion (6.2.12 (a)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |