| Most common failures | No# failures |
|---|
| Rear reflector missing (4.8.2 (a) (ii)) | 13 |
| Headlamp aim out of alignment | 12 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 12 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 8 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 8 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 7 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 7 |
| Front Brake excessively binding (1.2.1 (f)) | 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)) | 4 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 3 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 3 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 3 |
| Rear Brake pedal not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 3 |
| 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)) | 3 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 3 |
| Rear Brake grabbing severely (1.2.1 (c)) | 2 |
| Registration plate lamp issues | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Stop lamp does not illuminate by the operation of both brake controls Rear system inoperative (4.3.2 (a) (iii)) | 1 |
| Nearside Front Direction indicator likely to become detached (4.4.1 (c) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Position lamp switch does not operate in accordance with the requirements (4.2.2 (a)) | 1 |
| Rear Stop lamp not working adjusted and ok (4.3.1 (a) (ii)) | 1 |
| Fork yoke in such a condition that steering control is adversely affected forks twisted in yoke (2.2.2 (d) (ii)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Brake pedal pivot excessively tight rear brake completely siezed/not working (1.1.1 (a)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Central Rear Lower Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Central Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Motorcycle structure is so deformed it is likely to adversely affect braking or steering suspect bent headstock front wheel 3 cm out of square (6.1.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls rear inoperative (4.3.2 (a) (iii)) | 1 |
| Front Shock absorber has a serious fluid leak both front fork seals leaking (5.3.2 (b)) | 1 |
| Rear Drive chain excessively tight |6.1.7 |k| |i|| | 1 |
| Nearside Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Rear Brake effort inadequate at a wheel Linked system - front brake locked before any rear brake effort begins - incorrect adjustment of rear brake syatem (1.2.1 (a) (i)) | 1 |
| Offside Rear Lower Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Front Brake fluid contaminated (1.8 (a)) | 1 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 1 |
| Nearside Rear Direction indicator obviously incorrectly positioned (4.4.3 (a)) | 1 |
| Nearside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake component inadequately mounted split pin missing (1.1.21 (c)) | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Front Brake disc insecure bolts loose (1.1.14 (a) (ii)) | 1 |
| Front Brake hose connection leaking banjo bolt loose (1.1.12 (c)) | 1 |
| Front Wheel spindle loose (5.2.1 (c) (i)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Brake excessively binding dangerous (1.2.1 (f)) | 1 |
| Stop lamp not working when front brake applied (4.3.1 (a) (ii)) | 1 |
| Front Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Rear Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Drive chain excessively tight (6.1.7 (k) (i)) | 1 |
| Stop lamp not working rear brake (4.3.1 (a) (ii)) | 1 |
| Registration plate issues | 1 |
| Offside Steering operation fouling on the fuel tank or bodywork on full lock STEERING LOCK STOP BROKEN (2.1.4 (b)) | 1 |
| Central Front Upper Fork yoke insecure NUT LOOSE (2.2.2 (d) (i)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Front Brake excessively binding ********* on rear lever system ********** (1.2.1 (f)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected not secured correctly on throttle body (6.2.7 (a) (ii)) | 1 |
| Rear Wheel more than one fixing loose main spindle loose (5.2.1 (a) (ii)) | 1 |
| Drive chain worn to excess *** tight spots *** (6.1.7 (c) (i)) | 1 |
| Rear Brake pivot has restricted free movement seized (1.1.15 (e)) | 1 |