| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 26 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 20 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 17 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 15 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 13 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 10 |
| Registration plate issues | 9 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 7 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 6 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 6 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Throttle operating incorrectly |6.2.1f| | 5 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 5 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Horn not working |1.7.3a| | 4 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 4 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 4 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Registration plate lamp issues | 3 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 3 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Parking brake: efficiency below requirements |3.7.B.7| | 3 |
| Nearside Rear Lower Motorcycle structure cracked |6.1.1a| | 2 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Nearside Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 2 |
| Front Brake excessively binding (1.2.1 (f)) | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Nearside Front Footrest insecure |6.2.1a| | 2 |
| Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Brake hose damaged | 2 |
| Offside Front Footrest insecure |6.2.1a| | 2 |
| Parking brake efficiency less than 50% of the required value (1.4.2 (a) (ii)) | 2 |
| Front Service brake excessively binding (1.2.1 (f)) | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Throttle operating incorrectly |6.2.1f| | 2 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 2 |
| Offside Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Stop lamp not working |1.2.1b| | 2 |
| Rear suspension fouling which affects the movement of the rear suspension |2.4.A.3a| | 1 |
| Rear Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp does not illuminate immediately a brake applies Front Control |1.3.1a| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Offside Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Horn sound not in accordance with requirements incorrect type of horn fitted |7.7 |c|| | 1 |
| Stop lamp not working when operated on rear brake |4.3.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| missing |3.2.A1j| | 1 |
| Offside Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Offside Front Brake component leaking fluid caliper |3.2.B4| | 1 |
| Offside Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Front Brake hose fouling |3.2.B3b| | 1 |
| Offside Front Brake hose fouling |3.2.B3b| | 1 |
| Front Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Position lamp switch insecure |1.1.4b| | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Brake cable insecure |3.5.1d| | 1 |
| Offside Brake lever locking device insecure |3.5.1l| | 1 |
| Nearside Brake clevis joint locking device missing |3.5.1l| | 1 |
| Nearside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Lower Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Rear Upper Rear reflector on motorcycle missing |1.4.1| | 1 |
| Offside Front Horn is not continous or uniform |1.7.3c| | 1 |
| Nearside Front Horn control not functioning. |1.7.2b| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Brake pedal pivots excessively worn |3.1.3a| | 1 |
| Rear Exhaust has part of the system missing |7.1.1a| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Wheel spindle locking device ineffective fitted split pin to crown nut. (5.2.1 (d)) | 1 |
| Front Headlamp aim so that beam "kick up" is not visible on the screen mask fitted for kick up (4.1.2 (a)) | 1 |
| Handlebar retaining device loose (2.2.1 (b) (i)) | 1 |
| Rear wheel spindle securing nut locking device missing |2.4.A.2b| | 1 |
| Nearside Handlebar grip insecure to handlebar |2.2.1 |d| |ii|| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Centre Lower Motorcycle structure cracked |6.1.1a| | 1 |
| Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Nearside Parking brake inoperative on one side (1.4.1 (a)) | 1 |
| Nearside Rear Service brake effort inadequate at a wheel (1.2.1 (a) (i)) | 1 |
| Valve stem seriously misaligned Front and rear (5.2.3 (j)) | 1 |
| Nearside Front Sidecar direction indicator incorrect colour |1.5.1b| | 1 |
| Shock absorber has negligible damping effect light source reduces suspension movement (5.3.2 (b)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Rear Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Handlebar excessively corroded |2.1.1b| | 1 |
| Position lamp switch faulty |1.1.4a| | 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 |
| Nearside Front Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Offside Headlamp switch insecure |1.2.4| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Front Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear Brake pedal has insufficient reserve travel brake spongy |1.1.2 |a|| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Offside Rear Braking system leaking |3.6.A.1| | 1 |
| Offside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Brake clevis joint locking device insecure |3.5.1l| | 1 |
| Offside Front Upper Stop lamp switch with a delay in operation sticky, needs lubrication |4.3.2 |a| |ii|| | 1 |
| Centre Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Centre Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Front Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Motorcycle structure cracked |6.1.1a| | 1 |
| Brake performance not tested |3.3| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| Rear wheel spindle securing nut locking device insecure |2.4.A.2b| | 1 |
| Rear Brake excessively binding |1.2.1 |f|| | 1 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Nearside Lower Motorcycle structure excessively corroded frame |6.1.1a| | 1 |
| Rear Locking devices not correctly fitted which may make the motor bicycle dangerous to ride torsion bar |6.2.1h| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Rear Brake pipe inadequately supported |3.2.B2b| | 1 |
| Brake pedal cannot be released smoothly |3.1.3d| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Centre Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Nearside Exhaust has part of the system excessively deteriorated |7.1.1a| | 1 |
| Nearside Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Nearside Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Rear brake binding | 1 |
| Rear parking brake recording little or no effort | 1 |
| Front Fluid suspension unit deteriorated and likely to fail |2.4.D.1b| | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Centre Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Steering locking device insecure |2.2.C.1g| | 1 |
| Sidecar front position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Brake hose leaking fluid |3.2.B4| | 1 |
| Centre Rear reflector on motorcycle missing |1.4.1| | 1 |
| Horn control not functioning. |1.7.2b| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Horn not working (1.7.3a) | 1 |
| Exhaust has a major leak of exhaust gases (6.1.2 (a)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Offside Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Rear Brake pipe excessively damaged kinked |1.1.11 |c|| | 1 |
| Nearside Rear Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Headlamp aim projected beam image is obviously incorrect |4.1.2 |c|| | 1 |
| Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Nearside Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Offside Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Nearside Rear Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Front Brake component is excessively corroded |3.1.5| | 1 |
| Rear Brake component is excessively corroded |3.1.5| | 1 |
| Nearside Rear wheel bearing has excessive play |2.6.2| | 1 |
| Nearside Rear Upper Tie bar/rod has excessive play in a pin/bush |2.4.G.2| | 1 |
| Nearside Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Offside Front Brake hose leaking |3.6.A.1| | 1 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| An item not tested |Manual| | 1 |
| Rear Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Front An item not tested |Manual| | 1 |
| Rear An item not tested |Manual| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Fairing so located that it is likely to impede the steering |2.1.2e| | 1 |
| Brake hose fouling |3.2.B3b| | 1 |
| Offside Parking brake mechanism/associated mounting prescribed area is inadequately repaired |3.1.9| | 1 |
| Rear Brake pipe inadequately clipped |3.6.B.1| | 1 |
| Nearside Rear Shock absorbers damaged to the extent that it does not function Lower mounting lug snapped off (5.3.2 (b)) | 1 |
| Offside Front Shock absorbers has a serious fluid leak | 1 |
| Nearside Rear Brake cable has wires broken and is significantly weakened |3.5.1b| | 1 |
| Offside Exhaust system insecure (6.1.2 (a)) | 1 |
| Parking (secondary brake) on a single line braking system has inadequate effort at a wheel (1.3.1 (a) (i)) | 1 |
| Brake linkage has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Suspension component insecure and impairing directional stability front propshaft joint and rear bolts loose. (5.3.3 (a) (ii)) | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Rear Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Rear position lamp|s| missing |1.1.A.3a| | 1 |
| Stop lamp missing |1.2.1a| | 1 |
| Nearside Front Shock absorber has a serious fluid leak |2.7.3| | 1 |
| Rear Wheel has bolts/rivets missing or loose to the extent that control of the motorcycle is likely to be adversely affected (5.2.2 (e) (ii)) | 1 |
| Motorcycle structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Nearside Front Brake caliper leaking (1.1.16 (b) (i)) | 1 |
| Throttle operating incorrectly Sticking. (6.2.7 (a) (i)) | 1 |
| Nearside Front Brake hose which buldges |3.2.B4| | 1 |
| Offside Front Front position lamp incorrect colour |1.1.2a| | 1 |
| Nearside Steering lock stop maladjusted |2.1.3| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Centre Rear Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Centre Rear Rear position lamp missing |1.1.1a| | 1 |
| Nearside Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Nearside Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Torque/reaction arm has excessive play in a pin/bearing |2.4.G.2| | 1 |
| Brake performance not tested all (1.2.1 (g)) | 1 |
| Service brake excessively binding both rear (1.2.1 (f)) | 1 |
| Front Service brake excessively fluctuating (1.2.1 (e)) | 1 |
| Offside Rear Position lamp not working (4.2.1 (a) (ii)) | 1 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Rear Roller brake test indicates a binding brake (3.3.A1a) | 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 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Brake pedal cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake pedal cannot be released smoothly |3.1.3d| | 1 |