| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 23 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 21 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 15 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 13 |
| Registration plate issues | 11 |
| Rear reflector on motorcycle missing |1.4.1| | 10 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 8 |
| Drive chain excessively loose |6.2.1d| | 8 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 7 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 7 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Horn not working |1.7.3a| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 5 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 4 |
| Offside Front Direction indicator not working |1.5.1c| | 4 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 4 |
| Nearside Rear Direction indicator not working |1.5.1c| | 4 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Throttle operating incorrectly |6.2.1f| | 3 |
| Drive chain worn to excess |6.2.1e| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Drive chain excessively tight |6.2.1d| | 2 |
| Brake locking device missing |3.2.A1e| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Offside Handlebar deformed |2.1.1b| | 2 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Drive chain sprocket worn to excess |6.2.1e| | 2 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Steering headbearing has excessive free play |2.2.2| | 2 |
| Rear mono-shock pivot excessively worn |2.4.B.4| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Nearside Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Offside Brake disc|s| excessively worn |3.2.A1l| | 2 |
| Brake hose damaged | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 2 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 2 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 2 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Nearside Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Headlamp aim beam image kick-up is to the offside |1.6.1| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Offside Rear Footrest insecure |6.2.1a| | 1 |
| Position lamp not working |4.2.1 |a|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Exhaust silencer likely to become detached |8.1.1 |b| |ii|| | 1 |
| Front Wheel bearing rough when rotated |5.1.3 |b| |i|| | 1 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Rear Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Rear Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Nearside Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Front Brake linkage has abnormal movement due to excessive wear |3.2.A1i| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Nearside Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Rear Brake pedal is inoperative |3.1.3c| | 1 |
| Rear Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Upper Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Lower Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Wheel alignment incorrect which adversely affects the steering |2.5.1| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake caliper|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front Decelerometer brake test indicates a binding brake |3.3.E1d| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Direction indicators not working not flashing |1.5.1c| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on number plate |1.1.3a| | 1 |
| Rear Brake reaction bracket securing bolt|s| loose |3.2.A1j| | 1 |
| Chain guard insecure |6.2.1c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Direction indicators not working |1.5.1c| | 1 |
| Offside Steering lock stop ineffective |2.1.3| | 1 |
| Offside Rear Footrest missing |6.2.1a| | 1 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Lower Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear Brake locking device insecure |3.2.A1e| | 1 |
| Drive chain fouling another component |6.2.1d| | 1 |
| Direction indicator missing Front R & L |1.5.1a| | 1 |
| Direction indicator flashing more than 120 times per minute Rear R & L |1.5.1c| | 1 |
| Centre Lower Rear suspension bearing has excessive free play |2.4.A2a|i|| | 1 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Centre Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Headlamp incorrect colour |1.2.1| | 1 |
| Rear Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Handlebar deformed |2.1.1b| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Decelerometer brake test no brake control achieves an efficiency of 30% |3.3.E1a| | 1 |
| Decelerometer brake test neither brake control achieves an efficiency of 25% |3.3.E1c| | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b| | 1 |
| Clutch lever shortened so it cannot be readily operated. |6.2.1g| | 1 |
| Rear Brake hose leaking fluid |3.2.B4| | 1 |
| Centre Front Headlamp insecure |1.2.3b| | 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 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Brake caliper|s| insecure |3.2.A1j| | 1 |
| Nearside Drive chain excessively loose hanging down almost off |6.2.1d| | 1 |
| Drive belt guard insecure |6.2.1c| | 1 |
| Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| An item not tested |Manual| | 1 |
| Centre Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Front Valve stem seriously damaged (5.2.3 (j)) | 1 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Fuel cap missing |7.2.2a| | 1 |
| Nearside Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Offside Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Rear Drive chain excessively loose |6.2.1d| | 1 |
| Offside Front Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Nearside Rear Footrest missing |6.2.12 |a|| | 1 |
| Offside Rear Footrest missing |6.2.12 |a|| | 1 |
| Rear Suspension attachment bracket/mounting insecure REAR BRAKE TORQUE ARM SPILTPIN MISSING (5.3.3 (a) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the handling rear wheel has incorrect alignment |2.5.1| | 1 |
| Nearside Front Brake pipe union leaking fluid caliper |3.2.B4| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock on right hand lock |2.1.4| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking electrical wiring pinching in lower headstock on right hand lock |6.1.1c| | 1 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Nearside Front Brake disc|s| excessively worn |3.2.A1l| | 1 |
| Centre Front Upper Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Nearside Front Upper Direction indicator not working |1.5.1c| | 1 |
| Offside Front Upper Direction indicator not working |1.5.1c| | 1 |
| Rear Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Fuel tank leaking (6.1.3 (b) (i)) | 1 |
| Front Brake disc|s| friction surface contaminated by oil or grease |3.2.A1k| | 1 |
| Rear Drive chain excessively tight |6.2.1d| | 1 |
| Nearside Lower Front suspension assembly component cracked |2.3.1| | 1 |
| Offside Front Footrest missing |6.2.1a| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake pedal anti-slip provision missing (1.1.2 (c)) | 1 |
| Offside Rear Brake disc|s| is excessively distorted |3.2.A1m| | 1 |
| Nearside Rear Drive chain excessively tight |6.2.1d| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Fuel cap ineffective (6.1.3 (b) (i)) | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Front Position lamp not working (4.2.1 (a)) | 1 |
| Nearside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Rear Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |