| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 37 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 18 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 13 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 12 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 10 |
| Rear reflector on motorcycle missing |1.4.1| | 9 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 6 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 6 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 5 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Registration plate issues | 5 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 4 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 3 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 3 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 3 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| 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 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Horn not working |1.7.3a| | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 2 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 2 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 2 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear mono-shock pivot seized |2.4.B.4| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Front suspension has inadequate damping effect. |2.3.6c| | 2 |
| Handlebar deformed |2.1.1b| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Brake excessively binding (1.2.1 (f)) | 2 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 2 |
| Front Shock absorber has negligible damping effect (5.3.2 (b)) | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Brake performance not tested |3.3| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 2 |
| Front Brake excessively binding |1.2.1 |f|| | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Offside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 2 |
| Hazard warning lamps inoperative |1.4.B.1b| | 2 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Offside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Rear wheel insecure |4.2.3b| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Rear suspension component loose |2.4.A.1a| | 1 |
| Offside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Front Exhaust excessively deteriorated |7.1.1a| | 1 |
| Stop lamp does not illuminate immediately a brake applies rear stop lamp |1.3.1a| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Brake pedal attachment screws missing. clevis pin missing |3.1.2b| | 1 |
| Brake reaction bracket insecure split pin missing |3.2.A1j| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Rear Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Rear suspension component seized |2.4A2a|ii|| | 1 |
| Rear Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Front Wheel bearing play so excessive it is likely to break up (5.1.3 (a) (ii)) | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Nearside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Steering lock stop ineffective |2.1.3| | 1 |
| An item not tested |Manual| | 1 |
| Offside Rear Direction indicator not working |1.4.A.2c| | 1 |
| Nearside Rear Stop lamp not working |1.2.1b| | 1 |
| Rear Suspension arm has excessive play in a pin/bearing swinging arm bearings |2.4.G.2| | 1 |
| Nearside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front Brake fluid reservoir fluid level significantly below minimum level (1.1.10 (d) (ii)) | 1 |
| Rear Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Stop lamp not working From control 1 (4.3.1 (a) (ii)) | 1 |
| Brake excessively binding front brake binding |1.2.1 |f|| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Nearside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Offside Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Lower Rear suspension component seized |2.4A2a|ii|| | 1 |
| Brake lever is inoperative |3.1.3c| | 1 |
| Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Brake linked system has a seized caliper pivot. |3.2.B5| | 1 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Nearside Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Nearside Clutch lever bent so it cannot be readily operated. |6.2.1g| | 1 |
| Nearside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Rear Brake master cylinder severely damaged |3.2.B1b| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Offside Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Brake component is excessively corroded |3.1.5| | 1 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Rear Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Offside Front Brake component defective due to a deliberate modification which significantly reduces the original strength |3.1.5| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Nearside Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Fuel system component leaking (6.1.3 (b) (i)) | 1 |
| Offside Front Front shock absorber seal failed and leaking oil Excessive fluid found on mudguard and surrounding area |2.3.3| | 1 |
| Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Rear Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Floor brake test No brake control achieves an efficiency of 30%. |3.3.C1a| | 1 |
| Floor brake test Neither brake control achieves an efficiency of 25% |3.3.C1b| | 1 |
| Central Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 1 |
| Central Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Throttle operating incorrectly |6.2.7 |a| |i|| | 1 |
| Rear Brake reaction bracket insecure |3.2.A1j| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Front position lamp damaged and function impaired |1.1.1b| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Offside Brake hose leaking fluid |3.2.B4| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Centre Front Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Nearside Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Fuel pipe union leaking |7.2.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Rear reflector on motorcycle insecure |1.4.2c| | 1 |
| Nearside Footrest insecure |6.2.1a| | 1 |
| Front Brake lever has abnormal movement of levers indicating maladjustment |3.5.1f| | 1 |
| Exhaust noise is clearly in excess of that emitted by a similar vehicle fitted with a standard silencer in average condition |7.1.4| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Fuel tank leaking |7.2.1a| | 1 |
| Front Brake linkage excessively damaged |3.2.A1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Coil spring not correctly located |2.4.C.2| | 1 |
| Shock absorber has negligible damping effect |2.7.5| | 1 |
| Registration plate lamp issues | 1 |
| Steering headbearing has excessive free play |9.2.4| | 1 |
| Parking brake lever has no reserve travel |3.1.6b| | 1 |
| Rear position lamp|s| adversely affected by the operation of another lamp |1.1.A.3f| | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Brakes imbalanced across an axle | 1 |
| Front wheel bearings are excessively rough |9.2.8c| | 1 |
| Offside Front shock absorber leaking oil |9.2.7b| | 1 |
| Stop lamp not working |1.2.1b| | 1 |
| Hazard warning switch faulty |1.4.B.1d| | 1 |
| Hazard warning tell tale not working correctly |1.4.B.1e| | 1 |
| Hazard warning lamps not flashing in phase, with ignition on |1.4.B.1f| | 1 |
| Hazard warning lamps not flashing in phase, with ignition off |1.4.B.1f| | 1 |
| Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Offside Fuel system component leaking |7.2.3| | 1 |
| Offside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Driver`s seat insecure |6.2.A.1| | 1 |
| Rear Passenger`s seat insecure |6.2.A.1| | 1 |
| Hydraulic brake cylinder leaking hydraulic fluid |3.6.A.1| | 1 |
| Brake hose excessively deteriorated | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |