| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 33 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 12 |
| Steering headbearing has excessive free play |2.2.2| | 12 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 10 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 9 |
| Registration plate issues | 8 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Riders seat insecure |6.2.1a| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Exhaust noise is clearly in excess of that emitted by a similar motor bicycle fitted with a standard silencer in average condition |7.1.2| | 3 |
| Rear Roller brake test indicates a severely grabbing brake |3.3.A1b| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Rear Brake pedal insecure |3.1.2a| | 2 |
| Stop lamp not working |4.3.1 |a| |ii|| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Brake caliper|s| insecure |3.2.A1j| | 2 |
| Front wheel spindle loose |2.3.5a| | 2 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 2 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 2 |
| Rear Brake pedal pivots excessively worn |3.1.3a| | 2 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 2 |
| Offside Front Lower Front suspension assembly component loose |2.3.1| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Horn not working |1.7.3a| | 2 |
| Rear Position lamp not working |4.2.1 |a|| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Front Front suspension assembly component loose |2.3.1| | 1 |
| Offside Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Centre Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Brake lever mounting cracked |3.1.2c| | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Stop lamp missing |1.3.3a| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Rear Stop lamp missing |1.3.3a| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear suspension component cracked |2.4.A.1a| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.5a| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Front Upper Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Nearside Front Upper Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Front Position lamp switch does not operate the front and rear position lamps |1.1.4c| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Steering linkage has excessive free play |2.2.2| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of the horn |1.2.2c| | 1 |
| Rear Rear position lamp adversely affected by the operation of the horn |1.1.3b| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Front wheel bearings are excessively tight |2.3.5b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Fuel cap sealing washer missing |7.2.2c| | 1 |
| Rear Plate brake test indicates a sticking brake |3.3.B1a| | 1 |
| Front suspension assembly component loose |2.3.1| | 1 |
| Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Front Throttle operating incorrectly |6.2.1f| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Decelerometer brake test indicates a sticking brake |3.3.E1d| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Centre Front Lower Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Front Lower Front wheel spindle securing nut locking device missing |2.3.5a| | 1 |
| An item not tested |Manual| | 1 |
| Rear Direction indicators not working |1.5.1c| | 1 |
| Rear Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Brake cable knotted |3.2.A1b| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Front wheel spindle securing nut locking device insecure |2.3.3a| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front wheel has a missing wheel nut|s| |4.2.3a| | 1 |
| Front wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Brake cable excessively worn |1.1.15 |b|| | 1 |
| Nearside Front Suspension attachment bracket/mounting insecure |5.3.3 |a| |i|| | 1 |
| Nearside Lower Front suspension assembly component loose |2.3.1| | 1 |
| Offside Lower Front suspension assembly component loose |2.3.1| | 1 |
| Nearside Front suspension assembly component loose |2.3.1| | 1 |
| Offside Steering lock stop maladjusted |2.1.3| | 1 |
| Offside Front Steering lock stop missing |2.1.3| | 1 |
| Centre Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Central Rear Brake effort inadequate at a wheel brake adjusted |1.2.1 |a| |i|| | 1 |
| Front Front wheel insecure |4.2.3b| | 1 |
| Rear Plate brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.B1c| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Front wheel spindle loose |2.3.3a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Wheel fixing loose |single fixing| |5.2.1 |a| |ii|| | 1 |
| Front Wheel more than one fixing loose wheel nuts missing (5.2.1 (a) (ii)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected not returning (6.2.7 (a) (ii)) | 1 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |