| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 19 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 8 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Registration plate issues | 6 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 5 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 4 |
| Front suspension has inadequate damping effect. |2.3.6c| | 4 |
| Horn not working |1.7.3a| | 4 |
| 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 Brake disc|s| excessively worn |3.2.A1l| | 3 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 3 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Brake pedal has insufficient reserve travel (1.1.2 (a)) | 2 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Parking brake lever has no reserve travel |3.1.6b| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Front position lamp incorrect colour |1.1.2a| | 2 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Front Roller brake test indicates a binding brake (3.3.A1a) | 2 |
| Offside Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 2 |
| Offside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear Brake excessively binding (1.2.1 (f)) | 2 |
| Nearside Front Brake cylinder leaking hydraulic fluid |3.2.B1e| | 2 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 2 |
| Offside Rear rear brake recording little or no effort |3.7.B.5a| | 2 |
| Parking brake: efficiency below requirements |3.7.B.7| | 2 |
| Rear brake binding | 2 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Offside Rear Direction indicator missing |1.5.1a| | 1 |
| Rear Brake master cylinder insecurely mounted |3.2.B1a| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Indicator switch insecure |1.5.4| | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Nearside Front Brake component worn and seriously reduced in strength |3.2.A1| | 1 |
| Nearside Front Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Sidecar structure joining/attachment plate or fastening insecure (6.1.1 (b) (i)) | 1 |
| Stop lamp not working when front lever is applied (4.3.1 (a) (ii)) | 1 |
| Offside Front Brake disc contaminated (1.1.14 (b)) | 1 |
| Centre Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Brake pedal has insufficient reserve travel |1.1.2 |a|| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% |1.2.2 |a| |i|| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Stop lamp not working on both front and rear levers (4.3.1 (a) (ii)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected throttle sticks on lock to lock (6.2.7 (a) (ii)) | 1 |
| Brake pedal has insufficient reserve travel rear brake not working at all (1.1.2 (a)) | 1 |
| Brake cylinder leaking and braking performance affected rear brake master cylinder area (1.1.16 (b) (ii)) | 1 |
| Nearside Rear Upper Suspension arm has excessive play in a pin/bearing |2.4.G.2| | 1 |
| Parking brake: efficiency below requirements |3.7.C.1b| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Nearside Rear Upper Suspension arm has excessive play in a ball joint |2.4.G.2| | 1 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Nearside Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Rear Stop lamp affected by the operation of another lamp |1.3.2| | 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 |
| Nearside Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Sidecar wheel bearings have excessive free play (5.2.3c) | 1 |
| Sidecar wheel bearings are excessively rough (5.2.3d) | 1 |
| Nearside Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Rear Roller brake test indicates excessive fluctuation of brake effort (3.3.A1d) | 1 |
| Headlamp at least one does not illuminate on dipped beam (1.2.2a(i)) | 1 |
| Offside Rear Direction indicators not working (1.5.1c) | 1 |
| Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Central Front Upper Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Rear Stop lamp does not illuminate immediately a brake applies (1.3.1a) | 1 |
| Offside Front Brake hose is likely to be fouled or trapped by moving parts (3.2.B2c) | 1 |
| Offside Rear Position lamp showing white light to the rear indicator lense damaged (4.2.3 (a) (ii)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Front Upper Brake master cylinder leaking (1.1.10 (b) (ii)) | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Offside Front Fuel system component leaking excessively or a risk of fire fuel pump (6.1.3 (b) (ii)) | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Wheel bearing has excessive play |5.1.3 |a| |i|| | 1 |
| Front suspension assembly component loose Offside fork leg top yoke bolt loose |2.3.1| | 1 |
| Offside Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Brake pipe inadequately supported |3.2.B2b| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Nearside Front Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Nearside Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Offside Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Rear Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced SWING ARM CORRODED |6.1.1 |c| |i|| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Rear Brake disc fractured (1.1.14 (a) (ii)) | 1 |
| Shock absorber has a serious fluid leak L/H (5.3.2 (b)) | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. |3.3.E1b| | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp both sides interacting with side lights (4.4.3 (b)) | 1 |
| Headlamp aim not tested |1.6| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear Brake pipe union leaking fluid |3.2.B4| | 1 |
| Rear Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Rear Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Rear Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Nearside Front shock absorber leaking oil |9.2.7b| | 1 |
| Nearside Rear reflector missing side car (4.8.2 (a) (ii)) | 1 |
| Rear Brake pedal has insufficient reserve travel (1.1.2 (a)) | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil (2.3.3) | 1 |
| Front Front wheel bearings have excessive free play (2.3.5b) | 1 |
| Stop lamp does not illuminate immediately a brake applies front brake lever switch not working (1.3.1a) | 1 |
| Brake lever has inadequate reserve travel (3.1.3b) | 1 |
| Front wheel bearings have excessive free play (2.3.5b) | 1 |
| Decelerometer brake test the less effective brake control does not achieve an efficiency of 25%. (3.3.E1b) | 1 |
| Nearside Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Centre Front Headlamp dipped beam flickers when tapped lightly by hand |1.2.2c| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Nearside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Nearside Front Upper Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Front wheel insecure |4.2.3b| | 1 |
| Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front Brake fluid reservoir leaking hydraulic fluid |3.2.B1e| | 1 |
| Rear Brake cylinder insecurely mounted |3.2.B1a| | 1 |
| Offside Front Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Brake hose leaking fluid |3.2.B4| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Rear position lamp|s| not working |1.1.A.3b| | 1 |
| Nearside Front Upper Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Fuel hose leaking (6.1.3 (b) (i)) | 1 |
| Nearside Rear Stop lamp adversely affected by the operation of another lamp |1.2.1f| | 1 |
| Nearside Rear Direction indicator adversely affected by the operation of another lamp |1.4.A.2h| | 1 |
| Offside Side repeater not working |1.4.A.2c| | 1 |
| Offside Brake rod excessively damaged and seriously weakened |3.5.1e| | 1 |
| Offside Front Hand operated control valve leaking |3.2.1d| | 1 |
| Nearside Rear Brake hose exposed to excessive heat |3.6.B.4f| | 1 |
| Offside Rear Brake hose exposed to excessive heat |3.6.B.4f| | 1 |
| Nearside Rear Rear wheel bearing has excessive play |2.6.2| | 1 |
| Offside Front Fluid suspension unit leaking |2.4.D.2| | 1 |
| Nearside Rear rear brake recording little or no effort |3.7.B.5a| | 1 |
| Rear parking brake recording little or no effort | 1 |
| Service brake: efficiency below requirements |3.7.B.7| | 1 |
| Brake hose damaged | 1 |
| Offside Inner Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Direction indicator obscured |1.5.1a| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Nearside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Nearside Suspension component mounting prescribed area is excessively corroded |2.4.A.3| | 1 |
| Brakes imbalanced across an axle | 1 |
| Offside rear brake recording little or no effort |3.7.B.5a| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Rear Footrest insecure |6.2.1a| | 1 |
| Nearside Front Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear suspension component excessively corroded. |2.4.A.1a| | 1 |
| Front Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Nearside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Offside Front Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Exhaust has a major leak of exhaust gases |7.1.2| | 1 |
| Rear Vehicle structure is cracked, seriously affecting its strength within 30cm of the body mountings |6.1.B.2| | 1 |
| Nearside Rear Braking system leaking |3.6.A.1| | 1 |
| Front front brake binding |3.7.B.1| | 1 |
| Horn not working |1.6.2a| | 1 |
| Front brake caliper has restricted free movement |3.5.1k| | 1 |
| front brake binding |3.7.B.1| | 1 |
| All position lamps not working |1.1.A.3b| | 1 |
| Nearside Stop lamp not working |1.2.1b| | 1 |
| Shock absorber has a serious fluid leak |2.7.3| | 1 |