| Most common failures | No# failures |
|---|
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 51 |
| Headlamp aim out of alignment | 48 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 23 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 18 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 17 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 17 |
| Rear reflector on motorcycle missing |1.4.1| | 15 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 15 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 15 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 15 |
| Registration plate issues | 13 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 12 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 10 |
| Steering headbearing has excessive free play |2.2.2| | 10 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 10 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 9 |
| Registration plate lamp issues | 8 |
| Nearside Steering lock stop ineffective |2.1.3| | 8 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 7 |
| Riders seat insecure |6.2.1a| | 7 |
| Offside Steering lock stop ineffective |2.1.3| | 7 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 6 |
| Headlamp aim not tested |1.6| | 6 |
| Fuel cap sealing washer missing |7.2.2c| | 6 |
| Headlamp aim not tested (4.1.2 (b)) | 5 |
| Front Brake excessively binding (1.2.1 (f)) | 5 |
| Rear Position lamp not working (4.2.1 (a)) | 5 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 4 |
| Rear Direction indicator not working |1.5.1c| | 4 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 4 |
| Rear reflector missing (4.8.2 (a) (ii)) | 4 |
| Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Rear reflector on motorcycle obscured |1.4.1| | 4 |
| Rear reflector missing |4.8.2 |a| |ii|| | 4 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 4 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 4 |
| Front Brake excessively binding |1.2.1 |f|| | 3 |
| Headlamp not working on main beam (4.1.1 (a) (ii)) | 3 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 3 |
| Offside Rear Direction indicator not working (4.4.1 (a) (ii)) | 3 |
| Stop lamp remains on when the brakes are released | 3 |
| Front Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 3 |
| Front Direction indicator not working |1.5.1c| | 3 |
| Headlamp switch faulty |1.2.4| | 3 |
| Rear Brake lever has insufficient reserve travel |1.1.2 |a|| | 3 |
| Offside Front Direction indicators not working |1.5.1c| | 3 |
| Horn is not a constant note |1.7.3c| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 3 |
| Rear suspension bearing has excessive free play |2.4.A2a|i|| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Offside Rear Direction indicator not working |1.5.1c| | 3 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Steering headbearing has excessive wear or free play |2.2.2 |f| |i|| | 2 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25% (1.2.2 (a) (i)) | 2 |
| Rear Rear reflector missing (4.8.2 (a) (ii)) | 2 |
| Front Headlamp not working on main beam (4.1.1 (a) (ii)) | 2 |
| Offside Rear Footrest missing |6.2.1a| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear suspension bearing excessively deteriorated |2.4A.2a|i|| | 2 |
| Rear Shock absorber has negligible damping effect |5.3.2 |b|| | 2 |
| Indicator switch defective |1.5.4| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| Nearside Steering lock stop missing |2.1.3| | 2 |
| Horn control defective |1.7.2a| | 2 |
| Horn not working (7.7 (a) (ii)) | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Nearside Front Direction indicator not working |1.5.1c| | 2 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 2 |
| Headlamp aim not tested high beam |4.1.2 |b|| | 1 |
| Horn not working (7.7 (a)) | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Horn not working |7.7 |a| |ii|| | 1 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Nearside Steering linkage locking device missing (2.1.3 (d)) | 1 |
| Nearside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Central Front Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Nearside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Offside Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Rear Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Exhaust system insecure clamp bolt loose (6.1.2 (a)) | 1 |
| Front Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |
| Fuel system component leaking oil (6.1.3 (b) (i)) | 1 |
| All position lamps not working |4.2.1 |a|| | 1 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Rear Brake has no recorded effort at a wheel (1.2.1 (a) (ii)) | 1 |
| Steering headbearing excessively stiff or notchy (2.2.2 (f) (i)) | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Offside Front Steering lock stop ineffective |2.1.3| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Front Wheel bearing rough when rotated (5.1.3 (b) (i)) | 1 |
| Front Wheel bearing has excessive play (5.1.3 (a) (i)) | 1 |
| Throttle operating incorrectly (6.2.7 (a) (i)) | 1 |
| Throttle control functioning such that safe operation of the motorcycle is adversely affected (6.2.7 (a) (ii)) | 1 |
| Steering operation linkage fouling when handlebars turned from lock to lock (2.1.4 (a)) | 1 |
| Offside Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Dipswitch does not operate immediately when selected on dipped beam (4.1.3 (b)) | 1 |
| Dipswitch does not operate immediately when selected on main beam (4.1.3 (b)) | 1 |
| Wheel alignment incorrect which adversely affects the handling (2.4 (a)) | 1 |
| Nearside Rear Footrest missing |6.2.1a| | 1 |
| Position lamp switch faulty |1.1.4a| | 1 |
| Headlamp incorrect colour |1.2.1| | 1 |
| Headlamp aim not tested L.E.D type bulb fitted |1.6| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Front Wheel bearing play so excessive that directional control is impaired |5.1.3 |a| |ii|| | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement |6.1.8 |a| |i|| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Brake component damaged and seriously reduced in strength |3.2.A1| | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Nearside Direction indicators not working |1.5.1c| | 1 |
| Fuel hose leaking |7.2.1a| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Front Fork yoke in such a condition that steering control is adversely affected (2.2.2 (d) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Front Shock absorber has a serious fluid leak (5.3.2 (b)) | 1 |
| Indicator switch inoperative (4.4.2 (a) (ii)) | 1 |
| Steering movement excessively rough with the wheel raised |2.2.1b| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |
| Offside Front Stop lamp not working hand control |4.3.1 |a| |ii|| | 1 |
| Engine mounting/bracket bracket excessively loose |6.1.8 |a| |ii|| | 1 |
| Rear Exhaust has a major leak of exhaust gases |6.1.2 |a|| | 1 |
| Front Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Steering linkage locking device ineffective (2.1.3 (d)) | 1 |
| Rear Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Rear Lower Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Front All position lamps not working |4.2.1 |a|| | 1 |
| Offside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear Shock absorber has a serious fluid leak |5.3.2 |b|| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Headlamp light intensity severely reduced LED bulb fitted (4.1.4 (a)) | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen (4.1.2 (a)) | 1 |
| Nearside Rear Brake lever attachment screws loose |3.1.2b| | 1 |
| Stop lamp emits other than a steady red light |1.3.1b| | 1 |
| Offside Front Motorcycle structure cracked leg shield fairing not secure |6.1.1a| | 1 |
| Locking device|s| not correctly fitted which may make the motor bicycle dangerous to ride rear wheel hugger mount bolts missing |6.2.1h| | 1 |
| Locking devices not correctly fitted which may make the motor bicycle dangerous to ride air box mount bolts missing |6.2.1h| | 1 |
| Offside Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |
| Wheel alignment incorrect which adversely affects the steering FRONT WHEEL OF TO NEARSIDE (2.4 (a)) | 1 |
| Fork yoke excessively deformed BENT BACKWARDS (2.2.2 (d) (i)) | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Exhaust system insecure (6.1.2 (a)) | 1 |
| Rear Brake lever attachment screws loose |3.1.2b| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear Brake indicates excessive fluctuation of brake effort |1.2.1 |e|| | 1 |
| Rear suspension bearing has excessive free play Engine mounts |2.4.A2a|i|| | 1 |
| Stop lamp does not illuminate immediately a brake applies neither front or rear |1.3.1a| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Brake lever excessively damaged |3.2.A1c| | 1 |
| Front Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear Steering linkage has excessive free play |2.2.2| | 1 |
| Nearside Rear Direction indicators not working |1.5.1c| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Headlamp missing |1.2.3a| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Nearside Steering operation fouling on the fuel tank or bodywork on full lock |2.1.4 |b|| | 1 |
| Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Steering operation fouling on the fuel tank or bodywork on full lock (2.1.4 (b)) | 1 |
| Front Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear suspension bush has excessive free play engine busches |2.4.A2a|i|| | 1 |
| Riders seat insecure Lock is missing |6.2.1a| | 1 |
| Front Hydraulic brake control feels spongy |3.1.4a| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Steering linkage locking device ineffective right hand (2.1.3 (d)) | 1 |
| Engine mounting/bracket bracket damaged or deteriorated resulting in excessive movement (6.1.8 (a) (i)) | 1 |
| Brake cable excessively corroded Cable Broken |3.2.A1b| | 1 |
| Front Lower Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| 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 |
| Offside Steering lock stop missing |2.1.3| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Nearside Rear Motorcycle structure is deformed and structural rigidity is significantly reduced (6.1.1 (a) (i)) | 1 |
| Nearside Footrest missing (6.2.12 (a)) | 1 |
| Offside Footrest missing (6.2.12 (a)) | 1 |
| Headlamp lens seriously defective (4.1.1 (b) (ii)) | 1 |
| Rear Suspension component pin or bush excessively worn |5.3.4 |a| |i|| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.4 |a|| | 1 |
| Steering headbearing excessively stiff or notchy |2.2.2 |f| |i|| | 1 |
| Nearside Front Brake lever has abnormal movement of levers indicating excessive wear or maladjustment (1.1.15 (f)) | 1 |
| Nearside Front Brake lever insecure |3.1.2a| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Rear Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Nearside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Offside Front Direction indicator not working (4.4.1 (a) (ii)) | 1 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 1 |
| Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced (6.1.1 (c) (i)) | 1 |
| Rear Valve stem seriously misaligned |5.2.3 |j|| | 1 |
| Exhaust is leaking and excessively noisey Badly corroded all the way through & exhaust mount broken off of engine crank case |7.1.1b| | 1 |
| Rear suspension bush has excessive free play Swing arm / engine mount deteriorated |2.4.A2a|i|| | 1 |
| Rear reflector on motorcycle deteriorated and function impaired |1.4.2a| | 1 |
| Rear reflector on motorcycle incorrectly positioned |1.4.2d| | 1 |
| Steering movement excessively stiff with the wheel raised Especially on Right hand lock |2.2.1b| | 1 |
| Throttle operating incorrectly Automatic vehicle creeps, idle is set dangerously high |6.2.1f| | 1 |
| Offside Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Position lamp light intensity significantly reduced (4.2.3 (a) (ii)) | 1 |
| Centre Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Centre Rear Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Front Rear position lamp damaged and function impaired |1.1.1b| | 1 |
| Steering operation restricted in free movement from lock to lock stop lock not working |2.1.4 |c|| | 1 |
| Rear Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Offside Rear Direction indicator incorrect colour showing white |4.4.3 |a|| | 1 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |