| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 22 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 13 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 12 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 9 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 8 |
| Headlamp aim out of alignment | 7 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 7 |
| Horn not working (7.7 (a)) | 5 |
| Riders seat insecure (6.2.5 (a) (ii)) | 4 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Horn sound not in accordance with requirements (7.7 (c)) | 4 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 3 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 3 |
| All direction indicators not working (4.4.1 (a) (ii)) | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 2 |
| Registration plate issues | 2 |
| Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Nearside Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Brake grabbing severely (1.2.1 (c)) | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 2 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Headlamp aim unable to be tested (4.1.2 (b)) | 2 |
| Headlamp light intensity severely reduced main beam and dip on together (4.1.4 (a)) | 1 |
| Offside Throttle control functioning such that safe operation of the motorcycle is adversely affected Throttle unit loose on handlebars (6.2.7 (a) (ii)) | 1 |
| Nearside Brake lever insecure Pivot bolt loose (1.1.2 (e) (i)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Front Brake disc contaminated oil on disc (1.1.14 (b)) | 1 |
| Stop lamp not working from front lever (4.3.1 (a) (ii)) | 1 |
| Front Position lamp not working Flickering (4.2.1 (a)) | 1 |
| Headlamp not working on main beam Flickering (4.1.1 (a) (ii)) | 1 |
| Front Brake lever not releasing correctly and functionality of brakes affected (1.1.2 (b) (ii)) | 1 |
| Front Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Stop lamp emits other than a steady red light (4.3.3 (a) (ii)) | 1 |
| Front Motorcycle structure has a fracture which is likely to adversely affect braking or steering front fender not secure (6.1.1 (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 |
| Nearside Front Direction indicator light intensity significantly reduced (4.4.3 (a)) | 1 |
| Rear Brake lever insecure (1.1.2 (e) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Offside Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Stop lamp switch with a delay in operation (4.3.2 (a) (ii)) | 1 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Rear Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Brake master cylinder defective but brake still operating leaver is sticking , add more pressure jumps , needs attention (1.1.10 (b) (i)) | 1 |
| Front Brake lagging in operation (1.2.1 (d)) | 1 |
| Front Headlamp aim not tested Headlamp dip beam not working (4.1.2 (b)) | 1 |
| Nearside Front Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Central Front Headlamp aim not tested (4.1.2 (b)) | 1 |
| Exhaust system insecure rotternand held on with wrap (6.1.2 (a)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Brake hose excessively damaged (1.1.12 (b) (ii)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Headlamp aim not tested (4.1.2 (b)) | 1 |
| Central Front Lower Headlamp light intensity severely reduced high beam (4.1.4 (a)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Front Brake disc contaminated oily (1.1.14 (b)) | 1 |