| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 46 |
| Registration plate issues | 18 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 15 |
| Rear Position lamp not working (4.2.1 (a)) | 15 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 12 |
| Stop lamp not working (4.3.1 (a) (ii)) | 8 |
| Horn not working (7.7 (a) (ii)) | 7 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 7 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 5 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 5 |
| Registration plate lamp issues | 5 |
| Rear reflector missing (4.8.2 (a) (ii)) | 5 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Front Stop lamp does not illuminate by the operation of both brake controls (4.3.2 (a) (iii)) | 4 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 4 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 4 |
| Headlamp aim not tested (4.1.2 (b)) | 4 |
| Horn not working (7.7 (a)) | 4 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| All direction indicators adversely affected by the operation of another lamp (4.4.3 (b)) | 2 |
| 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)) | 2 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 2 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Front Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 2 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Brake lagging in operation (1.2.1 (d)) | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 2 |
| Steering headbearing excessively stiff or notchy notchy (2.2.2 (f) (i)) | 2 |
| Fuel cap missing |6.1.3 |b| |i|| | 1 |
| Nearside Rear Road spring insecure (5.3.1 (a) (i)) | 1 |
| Rear Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Front Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Handlebar grip insecure to handlebar (2.2.1 (d) (ii)) | 1 |
| Front Suspension component mounting modified so the suspension is inoperative (5.3.3 (c) (ii)) | 1 |
| Rear Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Steering headbearing excessively stiff or notchy head races excessively notchy (2.2.2 (f) (i)) | 1 |
| Forks in such a condition that steering control is adversely affected steering lock stop misaligned when handlebars turned to the left (2.2.2 (d) (ii)) | 1 |
| Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Exhaust has a major leak of exhaust gases front pipe to silencer (6.1.2 (a)) | 1 |
| Rear All position lamps not working (4.2.1 (a)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Front All position lamps not working (4.2.1 (a)) | 1 |
| Rear Brake disc insecure (1.1.14 (a) (ii)) | 1 |
| Rear Suspension arm pin or bush likely to become detached (5.3.4 (a) (ii)) | 1 |
| Rear Shock absorber has an excessively worn bush (5.3.2 (c)) | 1 |
| Exhaust has a major leak of exhaust gases Blow at silencer joint. (6.1.2 (a)) | 1 |
| Stop lamp showing white light to the rear (4.3.3 (a) (ii)) | 1 |
| Central Front Horn not working wire re connected (7.7 (a) (ii)) | 1 |
| Steering operation restricted in free movement from lock to lock (2.1.4 (c)) | 1 |
| Fuel cap missing (6.1.3 (b) (i)) | 1 |
| Nearside Front Upper Brake lever has restricted free movement heated grip stopping full travel of the lever (1.1.15 (e)) | 1 |
| Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Central Front Lower Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced FRONT MUDGUARD / GUARD LOOSE- have removed to to likely to become detached. (6.1.1 (b) (ii)) | 1 |
| Front Upper Throttle operating incorrectly throttle not returning at all (6.2.7 (a) (i)) | 1 |
| Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Front Wheel fixing missing (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake linkage has restricted free movement cant spin wheel (1.1.15 (e)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Stop lamp adversely affected by the operation of another lamp flashes when indicator is on (4.3.3 (b)) | 1 |
| Position lamp showing white light to the rear (4.2.3 (a) (ii)) | 1 |
| Rear reflector likely to become detached (4.8.1 (b) (ii)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Direction indicator obviously incorrectly positioned obscured by rider (4.4.3 (a)) | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Rear Brake disc contaminated (1.1.14 (b)) | 1 |
| Offside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Rear Shock absorber insecurely attached (5.3.2 (a) (i)) | 1 |
| Exhaust has a major leak of exhaust gases Silencer to front pipe join (6.1.2 (a)) | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Footrest insecure (6.2.12 (a)) | 1 |
| Front Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Rear Suspension component has excessive wear or free play (5.3.3 (d)) | 1 |
| Central Front Headlamp aim projected beam image obviously incorrect Aftermarket "LED" bulb fitted. (4.1.2 (c)) | 1 |
| Rear Outer Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Nearside Brake lever is so short that the brake cannot be readily applied (1.1.2 (d)) | 1 |
| Riders seat insecure Seat will not latch down. (6.2.5 (a) (ii)) | 1 |
| Nearside Suspension arm ball joint excessively worn (5.3.4 (a) (i)) | 1 |
| Front Exhaust system insecure downpipe (6.1.2 (a)) | 1 |
| Front Exhaust has a major leak of exhaust gases downpipe (6.1.2 (a)) | 1 |
| Front Brake lining(s) less than 1.0 mm thick liner coming off pad (1.1.13 (a)) | 1 |
| Front Horn not working (7.7 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Front All direction indicators not working both sides (4.4.1 (a) (ii)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Nearside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Nearside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Front All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Offside Rear All direction indicators not working (4.4.1 (a) (ii)) | 1 |
| Stop lamp light intensity significantly reduced (4.3.3 (a) (ii)) | 1 |
| Central Rear Lower Suspension arm pin or bush excessively worn (5.3.4 (a) (i)) | 1 |
| Central Rear Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Suspension component pin or bush excessively worn swinging arm (5.3.4 (a) (i)) | 1 |
| Fuel cap ineffective Sealing ring missing from cap (6.1.3 (b) (i)) | 1 |
| Front brake disc in such a condition that it is seriously weakened | 1 |