| Most common failures | No# failures |
|---|
| Registration plate lamp issues | 24 |
| Rear reflector missing (4.8.2 (a) (ii)) | 16 |
| Drive chain excessively loose (6.1.7 (c) (i)) | 14 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 11 |
| Headlamp aim out of alignment | 9 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 7 |
| Drive chain worn to excess (6.1.7 (c) (i)) | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 4 |
| Front Position lamp not working (4.2.1 (a)) | 4 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 4 |
| Front Brake excessively binding (1.2.1 (f)) | 4 |
| Rear Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 3 |
| Horn not working (7.7 (a)) | 3 |
| Headlamp not working on dipped beam (4.1.1 (a) (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 |
| Rear Brake excessively binding (1.2.1 (f)) | 3 |
| Rear Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 2 |
| Drive chain sprocket so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Front Steering headbearing in such a condition that steering control is adversely affected (2.2.2 (f) (ii)) | 2 |
| Headlamp insecure (4.1.1 (c)) | 2 |
| Drive chain so worn it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 2 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 2 |
| Rear Drive chain excessively loose (6.1.7 (c) (i)) | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Drive chain so loose it is likely to fail (6.1.7 (c) (ii)) | 2 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Nearside Rear Drive chain worn to excess (6.1.7 (c) (i)) | 2 |
| Central Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 2 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 2 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Front Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Front Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Chain guard insecure (6.1.7 (i)) | 1 |
| Stop lamp not working from front brake lever (4.3.1 (a) (ii)) | 1 |
| Registration plate issues | 1 |
| Clutch lever shortened so it cannot be readily operated (6.2.7 (b)) | 1 |
| Central Rear Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Central Front Brake caliper has no reserve travel and braking performance affected (1.1.16 (e) (ii)) | 1 |
| Roller brake test No brake control achieves an efficiency of 30% (1.2.2 (a) (i)) | 1 |
| Central Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 1 |
| Pillion seat insecure (6.2.6 (a) (ii)) | 1 |
| Brake caliper inadequately mounted (1.1.16 (c) (i)) | 1 |
| Front Stop lamp emits other than a steady red light control (4.3.3 (a) (ii)) | 1 |
| Nearside Front Direction indicator with a multiple light source more than 1/2 not functioning (4.4.1 (a) (ii)) | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected loose on handlebar (6.2.7 (a) (ii)) | 1 |
| Headlamp aim unable to be tested Dip beam not working (4.1.2 (b)) | 1 |
| Stop lamp not working off right hand brake lever (4.3.1 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp does not illuminate by the operation of both brake controls not operating from front brake (4.3.2 (a) (iii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Wheel excessively distorted Front wheel rim distorted by 4.5mm (2mm limit) (5.2.2 (c) (i)) | 1 |
| Brake disc significantly and obviously worn Front disc warped (1.1.14 (a) (i)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Stop lamp not working Not working from front brake (4.3.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator light intensity significantly reduced Over 50% LEDs not working (4.4.3 (a)) | 1 |
| Motorcycle structure has a fracture which is likely to adversely affect braking or steering Pannel on fuel tank lose may affect steering (6.1.1 (a) (ii)) | 1 |
| Drive chain excessively tight, so that it is likely to fail (6.1.7 (k) (ii)) | 1 |
| Central Front All position lamps not working Front position lamp inactive (4.2.1 (a)) | 1 |
| Central Rear All position lamps not working Rear position lamp inactive (4.2.1 (a)) | 1 |
| Front Brake fluid significantly below minimum mark (1.1.10 (d) (ii)) | 1 |
| Drive chain horseshoe locking device incorrectly fitted (6.1.7 (j) (i)) | 1 |
| Front Stop lamp not working front stop switch not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp not working front switch (4.3.1 (a) (ii)) | 1 |
| Front Brake excessively binding Front brake binding half of the full efficiency (1.2.1 (f)) | 1 |
| Stop lamp not working at rear brake (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working brake (4.3.1 (a) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Nearside Rear Drive chain excessively loose (6.1.7 (c) (i)) | 1 |
| Nearside Rear Drive chain horseshoe locking device likely to become detached Clip excessively loose (6.1.7 (j) (ii)) | 1 |
| Offside Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Offside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Nearside Front Direction indicator missing (4.4.1 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush excessively worn Swing arm has side to side movement (5.3.4 (a) (i)) | 1 |
| Front Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Drive chain worn to excess (6.1.7 (c) (i)) | 1 |
| Front Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Central Rear Wheel more than one fixing loose both rear wheel adusters loose (5.2.1 (a) (ii)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Central Rear Footrest insecure both rear footy hangers missing a bolt (6.2.12 (a)) | 1 |
| Front Steering operation linkage fouling when handlebars turned from lock to lock speedo insecure (2.1.4 (a)) | 1 |
| Front Fork yoke insecure (2.2.2 (d) (i)) | 1 |
| Offside Rear Footrest insecure (6.2.12 (a)) | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Nearside Front Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear brake binding | 1 |
| Exhaust silencer insecure (8.1.1 (b) (i)) | 1 |
| Clutch lever bent so it cannot be readily operated (6.2.7 (b)) | 1 |
| Brake pedal is bent and the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Rear reflector defective or damaged by more than 50% of the reflecting surface (4.8.1 (a) (ii)) | 1 |
| Footrest missing strap fitted (6.2.12 (a)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Drive chain sprocket worn to excess (6.1.7 (c) (i)) | 1 |
| Brake performance unable to be tested (1.2.1 (g)) | 1 |