| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 14 |
| Registration plate issues | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Horn not working |1.7.3a| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 5 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 4 |
| Horn not working |1.6.2a| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3 |
| Nearside Stop lamp not working |1.2.1b| | 3 |
| Offside Stop lamp not working |1.2.1b| | 3 |
| Parking brake lever has no reserve travel |3.1.6b| | 3 |
| Registration plate lamp issues | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Brake pedal insecure |3.1.2a| | 2 |
| Rear brake binding | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 2 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Offside Headlamp not working on dipped beam |1.7.5a| | 2 |
| Windscreen wiper blade insecure | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Brakes imbalanced across an axle | 2 |
| Front Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Nearside Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Brake locking device insecure |3.2.A1e| | 1 |
| Offside Seat belt retracting mechanism defective |5.2.5b| | 1 |
| Nearside Rear Footrest insecure |6.2.1a| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Front Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Horn control missing |1.6.1| | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Fuel cap sealing washer torn |7.2.2c| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Offside Rear Leaf spring fractured |2.4.B.1a| | 1 |
| Indicator tell tale inoperative |1.4.A.2a| | 1 |
| Nearside Front Wheel insecure |4.2.A.1c| | 1 |
| Front Brake component has an inadequate repair |3.1.5| | 1 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Brake lever pivots excessively worn |3.1.3a| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Horn not working |1.7.3a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake hose damaged | 1 |
| Offside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Nearside Front Upper Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c| | 1 |
| Offside Front Upper Front suspension has excessive movement at a wishbone pin or bush |2.5.A.1c| | 1 |
| Offside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Front Direction indicator not working |1.4.A.2c| | 1 |
| Offside Rear Rear position lamp|s| excessively deteriorated so that it is not visible from a reasonable distance |1.1.A.3d| | 1 |
| Fuel cap/sealing device does not fasten securely maintaining the sealing arrangement |7.2.4b| | 1 |
| Offside Seat belt anchorage prescribed area is inadequately repaired |5.2.6| | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Front Brake reaction bracket insecure |3.2.A1j| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Nearside Rear Service brake excessively binding (1.2.1 (f)) | 1 |
| Offside Front Lower Suspension component likely to become detached (5.3.3 (a) (ii)) | 1 |
| Nearside Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Offside Headlamp aim beam image kick up to the offside |1.8| | 1 |
| Offside Front Brake pipe fouled by moving parts |3.6.B.2a| | 1 |
| Nearside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Front position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Headlamp not working on dipped beam |1.7.5a| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Front Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Rear Vehicle structure has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Offside Front Vehicle structure is cracked, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Body or chassis has excessive corrosion, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Front wheel bearing has excessive play |2.5.A.3c| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Nearside Front Track rod end ball joint has excessive play |2.2.B.1f| | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Nearside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Offside Front Direction indicator incorrect colour |1.4.A.2f| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Front Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Service brake juddering severely |3.7.C.2| | 1 |
| Windscreen washer not working | 1 |
| Headlamp switch faulty |1.7.1| | 1 |
| All position lamps not working |1.1.A.3b| | 1 |
| Nearside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Offside Windscreen wiper not operating over a large enough area to give an adequate view |8.2.1c| | 1 |
| Driver`s door cannot be opened from inside the vehicle |6.2.B.1b| | 1 |
| Front passenger door cannot be opened from inside the vehicle |6.2.B.1b| | 1 |
| Brake pedal has insufficient reserve movement |3.3.A.5| | 1 |
| Nearside Front Brake pipe inadequately supported |3.6.B.1| | 1 |
| Offside Rear Brake pipe inadequately supported |3.6.B.1| | 1 |
| Offside Front Brake pipe inadequately supported |3.6.B.1| | 1 |
| Offside Front Steering locking device missing |2.2.C.1g| | 1 |
| Nearside Rear Parking brake lever, pawl mechanism pivot|s| or their associated mountings locking device insecure |3.1.4b| | 1 |
| Offside Rear Parking brake lever, pawl mechanism pivot|s| or their associated mountings locking device insecure |3.1.4b| | 1 |
| Nearside Front Lower Suspension arm attachment bracket/mounting insecure |2.4.G.1| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Nearside rear brake excessively fluctuating |3.7.B.3| | 1 |
| Brake pedal spongy pedal dissapears if pressed slowly |3.3.B.1b| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| 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| | 1 |
| Offside Fuel system component leaking |7.2.1a| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Horn missing |1.7.1| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Front Upper Horn missing |1.7.1| | 1 |
| Centre Front Fuel tank leaking |7.2.1a| | 1 |
| Centre Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Nearside Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Nearside Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Rear Chain guard fouling another component |6.2.1c| | 1 |
| Offside Front An item not tested |Manual| | 1 |
| Offside Front Brake lever insecure |3.1.2a| | 1 |