| Most common failures | No# failures |
|---|
| Registration plate issues | 20 |
| Headlamp aim out of alignment | 12 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 8 |
| Rear reflector on motorcycle missing |1.4.1| | 8 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| 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| | 5 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Steering headbearing has excessive free play |2.2.2| | 3 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 3 |
| Horn not working |1.7.3a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Rear suspension has a modification which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 2 |
| Offside Rear suspension has a modification which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Nearside Rear reflector missing |1.5.1a| | 2 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 2 |
| Registration plate lamp issues | 1 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Rear Rear wheel insecure |4.2.3b| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Centre Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Wheel bearing so rough it is likely to overheat or break up (5.1.3 (b) (ii)) | 1 |
| Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Handlebar mounting excessively deteriorated |flexible type| |2.1.1d| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Headlamp light source and lamp not compatible main beam |4.1.4 |c|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Parking |secondary brake| on a single line braking system has no recorded effort at a wheel lever missing |1.3.1 |a| |ii|| | 1 |
| Front Brake fluid significantly below minimum mark |1.1.10 |d| |ii|| | 1 |
| Nearside Handlebar grip not secure to handlebars. |2.2.1 |f| |ii|| | 1 |
| Offside Rear Outer Suspension component insecurely attached cv gaitor |5.3.3 |a| |i|| | 1 |
| Parking brake efficiency less than 50% of the required value |1.4.2 |a| |ii|| | 1 |
| Front Front position lamp|s| not working |1.1.A.3b| | 1 |
| Rear Stop lamp excessively damaged so that it is not visible from a reasonable distance |1.2.1d| | 1 |
| Offside Rear reflector missing |1.5.1a| | 1 |
| Nearside Handlebar mounting clamp bolt loose |9.2.1c| | 1 |
| Offside Handlebar mounting clamp bolt loose |9.2.1c| | 1 |
| Nearside Rear Upper Suspension arm has excessive play in a pin/bush |2.4.G.2| | 1 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Direction indicators flashing less than 60 times a minute |1.4.A.2g| | 1 |
| Front Front position lamp|s| obviously incorrectly positioned |1.1.A.3a| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Offside Rear 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 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| All direction indicators missing |4.4.1 |a| |ii|| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Front Brake lever has insufficient reserve travel lever Touching handle bar when brake is applied |1.1.2 |a|| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Stop lamp(s) not working (4.3.1 (a) (ii)) | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Fuel cap sealing washer deteriorated |7.2.2c| | 1 |
| Indicator tell tale not functioning |1.5.2| | 1 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Stop lamp(s) remains on when the brakes are released (4.3.2 (a) (iii)) | 1 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp (4.4.3 (b)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Fuel system component leaking excessively or a risk of fire (6.1.3 (b) (ii)) | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Brake hose excessively kinked |3.2.B3a| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Rear Wheel fixing missing (multiple fixings) (5.2.1 (a) (i)) | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Rear Brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |