| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 32 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 25 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 23 |
| Registration plate issues | 19 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 12 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 11 |
| Steering headbearing has excessive free play |2.2.2| | 11 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 10 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 10 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 9 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 8 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 7 |
| An item not tested |Manual| | 7 |
| Direction indicators not working |1.5.1c| | 6 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 6 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Horn not working |1.7.3a| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Riders seat insecure |6.2.1a| | 5 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 5 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 5 |
| Handlebar deformed |2.1.1b| | 4 |
| Front Direction indicators not working |1.5.1c| | 4 |
| Front Stop lamp remains on when the brake is released |1.3.1e| | 4 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 4 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 4 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 4 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 4 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 4 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 4 |
| Nearside Front Direction indicator not working |1.5.1c| | 4 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 4 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 4 |
| Motorcycle structure excessively corroded |6.1.1a| | 4 |
| Exhaust excessively deteriorated |7.1.1a| | 4 |
| Rear Rear reflector on motorcycle missing |1.4.1| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 3 |
| All position lamps adversely affected by the operation of the horn |1.1.3b| | 3 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 3 |
| Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a| | 3 |
| Nearside Front Direction indicator insecure |1.5.3b| | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Offside Rear Direction indicators not working |1.5.1c| | 3 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 3 |
| Offside Front Direction indicator not working |1.5.1c| | 3 |
| Front wheel bearings are excessively rough |2.3.5b| | 3 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 3 |
| Motorcycle structure excessively damaged |6.1.1a| | 3 |
| Front wheel bearings have excessive free play |2.3.5b| | 2 |
| Nearside Direction indicator not working |1.5.1c| | 2 |
| Offside Direction indicator not working |1.5.1c| | 2 |
| Rear All position lamps do not illuminate immediately when switched on |1.1.3a| | 2 |
| Rear Direction indicators not working |1.5.1c| | 2 |
| Headlamp aim not tested |1.6| | 2 |
| Stop lamp affected by the operation of the horn |1.3.2| | 2 |
| Rear Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Front Direction indicator damaged and function impaired |1.5.3a| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 2 |
| Horn is not a constant note |1.7.3c| | 2 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 2 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Throttle operating incorrectly |6.2.1f| | 2 |
| Nearside Rear Direction indicator not working |1.5.1c| | 2 |
| Nearside Brake lever insecure |3.1.2a| | 2 |
| Offside Rear Direction indicator not working |1.5.1c| | 2 |
| Offside Front Direction indicator damaged and function impaired |1.5.3a| | 2 |
| Nearside Front Direction indicator incorrect colour |1.5.1b| | 2 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 2 |
| Nearside Rear Direction indicators not working |1.5.1c| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Centre Lower Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Front Steering headbearing has excessive free play |2.2.2| | 2 |
| Nearside Front Direction indicator damaged and function impaired |1.5.3a| | 2 |
| Steering movement excessively stiff with the wheel raised |2.2.1b| | 2 |
| Offside Rear Exhaust excessively deteriorated |7.1.1a| | 2 |
| Rear reflector on motorcycle missing |1.4.1| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Front Direction indicator insecure |1.5.3b| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Centre Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Steering headbearing has excessive wear or free play (2.2.2 (f) (i)) | 2 |
| Offside Direction indicators not working |1.5.1c| | 1 |
| Nearside Lower Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Rear suspension movement is excessively stiff |2.4.A.3b| | 1 |
| Front Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Headlamp aim not tested |1.6| | 1 |
| Front All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 1 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 1 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 1 |
| Rear Rear wheel spindle securing nut|s| loose |2.4.A.2b| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Front Direction indicator missing |1.5.1a| | 1 |
| Front Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Headlamp not working on dipped beam |4.1.1 |a| |ii|| | 1 |
| Rear Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Headlamp dipped beam affected by the operation of the horn |1.2.2c| | 1 |
| Front Floor brake test indicates a severely grabbing brake |3.3.C2d| | 1 |
| Front Front suspension assembly component excessively corroded. |2.3.1| | 1 |
| Rear Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Centre Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 1 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Rear Position lamp not working |4.2.1 |a|| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 1 |
| Steering control handlebar movement restricted by cables caught on a projection |2.1.2c| | 1 |
| Rear Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Front Steering linkage has excessive free play |2.2.2| | 1 |
| Nearside Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Headlamp insecure |1.2.3b| | 1 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Front Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Offside Brake lever insecure |3.1.2a| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Headlamp aim beam image kick up to the offside |1.6| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Front Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| Rear Brake linkage excessively corroded |3.2.A1c| | 1 |
| Front Wheel spindle loose |5.2.1 |c| |i|| | 1 |
| Nearside Front Brake lever attachment screws loose |3.1.2b| | 1 |
| Brake performance not tested |3.3| | 1 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Front Front position lamp does not illuminate immediately when switched on |1.1.3a| | 1 |
| Front Handlebar deformed |2.1.1b| | 1 |
| Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Brake lever mounting insecure |3.1.2a| | 1 |
| Rear Brake lever mounting insecure |3.1.2a| | 1 |
| Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Nearside Front Direction indicators not working |1.5.1c| | 1 |
| Offside Front Direction indicators not working |1.5.1c| | 1 |
| Nearside Front Brake lever insecure |3.1.2a| | 1 |
| Nearside Front Brake lever mounting insecure |3.1.2a| | 1 |
| Nearside Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front Handlebar mounting clamp loose |2.1.1a| | 1 |
| Front position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear position lamp deteriorated and function impaired |1.1.1b| | 1 |
| Rear Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear Brake back plate|s| securing bolt|s| loose |3.2.A1j| | 1 |
| Front All direction indicators adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Rear All direction indicators adversely affected by the operation of another lamp |4.4.3 |b|| | 1 |
| Front All direction indicators light intensity significantly reduced |4.4.3 |a|| | 1 |
| Rear All direction indicators light intensity significantly reduced |4.4.3 |a|| | 1 |
| Front Horn sound not in accordance with requirements |7.7 |c|| | 1 |
| Rear Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Steering movement excessively stiff with the wheel raised |2.2.1b| | 1 |
| Front Front suspension has inadequate damping effect. |2.3.6c| | 1 |
| Roller brake test Neither brake control achieves an efficiency of 25% |3.3.A2b| | 1 |
| Horn is not continous or uniform |1.7.3c| | 1 |
| Centre Rear Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 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 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Headlamp aim headlamp damaged and function impaired |1.2.3a| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Handlebar mounting clamp bolt loose |2.1.1a| | 1 |
| Fuel system component insecure |7.2.1b| | 1 |
| Offside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Nearside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Rear All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Handlebar handgrip not secure to handlebars. L/H |2.1.1c| | 1 |
| Offside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Offside Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Front Plate brake test indicates a binding brake |3.3.B1a| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Nearside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Lower Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Offside Front Lower An item not tested |Manual| | 1 |
| Rear Lower An item not tested |Manual| | 1 |
| Front Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 1 |
| Nearside Rear suspension component cracked |2.4.A.1a| | 1 |
| Centre Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Centre Motorcycle structure cracked |6.1.1a| | 1 |
| Centre Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Centre Motorcycle structure adversely modified |6.1.1b| | 1 |
| Front Horn is not continous or uniform |1.7.3c| | 1 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Nearside Front Direction indicator deteriorated and function impaired |1.5.3a| | 1 |
| Offside Front Direction indicator incorrect colour |1.5.1b| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Front Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Brake lever insecure |3.1.2a| | 1 |
| Nearside Outer Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Offside Outer Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Nearside Outer Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Offside Outer Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Nearside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Front Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Rear Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Lower Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Rear position lamp insecure |1.1.1c| | 1 |
| Nearside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Offside Front Direction indicator insecure taped to fairing |1.5.3b| | 1 |
| Front Direction indicator not working |1.5.1c| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Headlamp aim so that beam "kick up" is not visible on the screen |4.1.2 |a|| | 1 |
| Fuel system component leaking carb over filling |6.1.3 |b| |i|| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Decelerometer brake test No brake control achieves an efficiency of 30% |1.2.2 |a| |i|| | 1 |
| All direction indicators not working |4.4.1 |a| |ii|| | 1 |
| Front suspension has excessive corrosion which reduces the strength of a load bearing member or its supporting structure. |2.3.8| | 1 |
| Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Central Front Lower Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced main frame corroded to a hole around frame spar (6.1.1 (c) (i)) | 1 |
| Front Brake excessively binding (1.2.1 (f)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake excessively binding (1.2.1 (f)) | 1 |
| Horn not working (7.7 (a) (ii)) | 1 |
| All position lamps not working (4.2.1 (a)) | 1 |
| Exhaust has a major leak of exhaust gases unable to test (6.1.2 (a)) | 1 |
| Front Brake lever has insufficient reserve travel control one (1.1.2 (a)) | 1 |
| Engine mounting/bracket damaged or deteriorated resulting in excessive movement Engine rubber bushes damaged/worn (6.1.8 (a) (i)) | 1 |
| Handlebar so insecure it is likely to become detached (2.2.1 (b) (ii)) | 1 |
| Rear Shock absorber has negligible damping effect (5.3.2 (b)) | 1 |
| Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced chassis (6.1.1 (c) (i)) | 1 |
| Headlamp aim projected beam image obviously incorrect (4.1.2 (c)) | 1 |