| Most common failures | No# failures |
|---|
| Rear reflector on motorcycle missing |1.4.1| | 63 |
| Registration plate issues | 54 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 47 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 24 |
| Headlamp aim out of alignment | 22 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 20 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 17 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 17 |
| Offside Steering lock stop ineffective |2.1.3| | 15 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 15 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 14 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 13 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 12 |
| Riders seat insecure |6.2.1a| | 12 |
| Offside Steering lock stop missing |2.1.3| | 12 |
| Front wheel bearings have excessive free play |2.3.5b| | 11 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 10 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 9 |
| Offside Rear Direction indicator not working |1.5.1c| | 9 |
| Stop lamp remains on when the brake is released |1.3.1e| | 8 |
| Steering headbearing has excessive free play |2.2.2| | 8 |
| Nearside Rear Direction indicator not working |1.5.1c| | 8 |
| Horn not working |1.7.3a| | 7 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 6 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 6 |
| Nearside Steering lock stop ineffective |2.1.3| | 6 |
| 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| | 6 |
| Front wheel bearings are excessively rough |2.3.5b| | 6 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 6 |
| Nearside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Offside Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 5 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 5 |
| Direction indicators not working |1.5.1c| | 5 |
| Front shock absorber seal failed and leaking oil |2.3.3| | 5 |
| Offside Rear Direction indicators not working |1.5.1c| | 4 |
| Rear Brake lever cannot be released smoothly |3.1.3d| | 4 |
| Nearside Steering lock stop missing |2.1.3| | 4 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Throttle operating incorrectly |6.2.1f| | 4 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 4 |
| Nearside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 3 |
| Offside Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Handlebar deformed |2.1.1b| | 3 |
| Rear Direction indicator not working |1.5.1c| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Offside Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Front Steering lock stop ineffective |2.1.3| | 3 |
| Front Steering lock stop missing |2.1.3| | 3 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Offside Front Steering lock stop ineffective |2.1.3| | 3 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 3 |
| Front Front shock absorber seal failed and leaking oil |2.3.3| | 3 |
| Offside Footrest insecure |6.2.1a| | 3 |
| Nearside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 2 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 2 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 2 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 2 |
| Offside Front Steering lock stop missing |2.1.3| | 2 |
| Steering lock stop ineffective |2.1.3| | 2 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 2 |
| Indicator tell tale not functioning |1.5.2| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Exhaust mounting missing |7.1.1c| | 2 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Front Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Front Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 2 |
| Steering movement excessively `notchy` with the weight on the lower bearing |2.2.1a| | 2 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 2 |
| Front Direction indicator not working |1.5.1c| | 2 |
| Headlamp aim beam image kick up to the offside |1.6| | 2 |
| Rear Footrest missing |6.2.1a| | 2 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Nearside Footrest insecure |6.2.1a| | 2 |
| Nearside Brake lever insecure |3.1.2a| | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Offside Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Rear Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Fork yoke deformed |2.1.1b| | 1 |
| Rear Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front wheel spindle securing nut|s| loose |2.3.3a| | 1 |
| Nearside Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front mudguard insecure |2.3.7| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Direction indicator incorrect colour |1.5.1b| | 1 |
| Offside Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Direction indicator insecure |1.5.3b| | 1 |
| Fuel pipe leaking |7.2.1a| | 1 |
| Headlamp switch faulty |1.2.4| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Lower Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| All position lamps do not illuminate immediately when switched on L/H/F sidelight. |1.1.3a| | 1 |
| Direction indicators not working L/H/R |1.5.1c| | 1 |
| Front suspension assembly component excessively misaligned |2.3.1| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| All position lamps adversely affected by the operation of the horn |1.1.3b| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Offside Outer Rear Direction indicator not working |1.5.1c| | 1 |
| Front Brake locking device missing |3.2.A1e| | 1 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Nearside Front Upper Direction indicators not working |1.5.1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Rear Rear wheel bearings are excessively rough |2.4.A.2c| | 1 |
| Rear Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Offside Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Brake lever mounting insecure |3.1.2a| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Stop lamp deteriorated and function impaired |1.3.3a| | 1 |
| Offside Rear Direction indicator not working |4.4.1 |a| |ii|| | 1 |
| Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Rear position lamp missing |1.1.1a| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Rear Brake lever mounting cracked |3.1.2c| | 1 |
| Steering movement excessively rough with the weight on the lower bearing |2.2.1a| | 1 |
| Headlamp damaged and function impaired |1.2.3a| | 1 |
| Rear Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Plate brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.B2b| | 1 |
| Exhaust has part of the system missing |7.1.1a| | 1 |
| Offside Front Brake pipe union leaking fluid |3.2.B4| | 1 |
| Steering lock stop missing |2.1.3| | 1 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Front Lower Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 1 |
| Nearside Brake lever mounting insecure |3.1.2a| | 1 |
| Rear reflector missing (4.8.2 (a) (ii)) | 1 |
| Wheel alignment incorrect which adversely affects the steering (2.4 (a)) | 1 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Offside Steering control has Insufficient clearance at full lock affecting the riders grasp of handlebars |2.1.2b| | 1 |
| Offside Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake lever pivot excessively tight (1.1.1 (a)) | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Headlamp aim not tested |4.1.2 |b|| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Headlamp not working on main beam |4.1.1 |a| |ii|| | 1 |
| Rear reflector missing |4.8.2 |a| |ii|| | 1 |
| Registration plate lamp issues | 1 |
| Stop lamp not working |4.3.1 |a| |ii|| | 1 |
| Direction indicator obviously incorrectly positioned Rear indicators built in to the brake lamp assembly |4.4.3 |a|| | 1 |
| Stop lamp adversely affected by the operation of another lamp Indicators built in to the stop lamp affecting the operation of the stop lamp |4.3.3 |b|| | 1 |
| Offside Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Nearside Front Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Stop lamp missing |1.3.3a| | 1 |
| Steering linkage insecure to the extent there is excessive movement at the mountings (2.1.3 (a) (ii)) | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 1 |
| Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Front mudguard insecure |2.3.7| | 1 |
| Nearside Front Front shock absorber seal failed and leaking oil |2.3.3| | 1 |
| Rear Brake pedal has inadequate reserve travel |3.1.3b| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Brake hose fouling |3.2.B3b| | 1 |
| Rear reflector on motorcycle does not reflect squarely to the rear |1.4.1| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Fuel system component leaking |7.2.1a| | 1 |
| Nearside Front Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Offside Front Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Offside Front Brake lever insecure |3.1.2a| | 1 |
| Offside Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Nearside Front Footrest insecure |6.2.1a| | 1 |
| Front Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Rear reflector on motorcycle damaged and function impaired |1.4.2a| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Front Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 1 |
| Rear reflector on motorcycle obscured |1.4.1| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen LED bulb fitted (4.1.2 (a)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Brake performance not tested (1.2.1 (g)) | 1 |
| Offside Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Rear Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |