| Most common failures | No# failures |
|---|
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 32 |
| Headlamp aim out of alignment | 32 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 21 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 19 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 18 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 15 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 14 |
| Registration plate issues | 13 |
| Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 9 |
| Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 9 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 8 |
| Exhaust excessively deteriorated |7.1.1a| | 8 |
| Steering headbearing has excessive free play |2.2.2| | 7 |
| Front Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Front wheel bearings have excessive free play |2.3.5b| | 7 |
| Front Brake disc|s| has excessive run out |3.2.A1m| | 6 |
| Front Brake disc|s| excessively worn |3.2.A1l| | 6 |
| Riders seat insecure |6.2.1a| | 6 |
| Front Brake disc|s| excessively scored |3.2.A1l| | 5 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 5 |
| Front Front wheel bearings are excessively rough |2.3.5b| | 5 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Offside Front Direction indicator insecure |1.5.3b| | 5 |
| Headlamp insecure |1.2.3b| | 4 |
| Front position lamp does not illuminate immediately when switched on |1.1.3a| | 4 |
| Direction indicators flashing more than 120 times per minute |1.5.1c| | 4 |
| Nearside Front Direction indicators not working |1.5.1c| | 4 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 4 |
| Front Brake disc|s| is excessively distorted |3.2.A1m| | 4 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 3 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 3 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 3 |
| Steering movement excessively `notchy` with the wheel raised |2.2.1b| | 3 |
| Rear Brake lever is so short and the brake cannot be readily applied |3.1.3c| | 3 |
| Nearside Front Direction indicator insecure |1.5.3b| | 3 |
| Nearside Rear Direction indicator insecure |1.5.3b| | 3 |
| Direction indicators not working |1.5.1c| | 3 |
| Nearside Rear Direction indicator incorrect colour |1.5.1b| | 3 |
| Front Brake excessively binding (1.2.1 (f)) | 3 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 3 |
| Headlamp aim beam image kick up to the offside |1.6| | 3 |
| Headlamp aim not tested |1.6| | 2 |
| Rear Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 2 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 2 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 2 |
| Horn is not a constant note |1.7.3c| | 2 |
| Horn is not continous or uniform |1.7.3c| | 2 |
| Horn not working |1.7.3a| | 2 |
| Front Floor brake test indicates a binding brake |3.3.C2c| | 2 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 2 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 2 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 2 |
| Front wheel bearings are excessively rough |2.3.5b| | 2 |
| Fuel cap does not fasten securely by a positive means |7.2.2b| | 2 |
| Nearside Front Direction indicator missing |1.5.1a| | 2 |
| Offside Front Direction indicator missing |1.5.1a| | 2 |
| Fairings insecure and likely to impede the steering |2.1.2e| | 2 |
| Front suspension fouling which affects the movement of the front suspension. |2.3.6a| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 2 |
| Offside Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Rear wheel rotation likely to be impeded |6.2.1b| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 2 |
| Rear Upper Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 2 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Nearside Brake lever has insufficient reserve travel (1.1.2 (a)) | 2 |
| Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 2 |
| Nearside Handlebar handgrip not secure to handlebars. |2.1.1c| | 2 |
| Rear Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 2 |
| Rear wheel bearings are excessively rough |2.4.A.2c| | 2 |
| 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 |
| Front mudguard insecure |2.3.7| | 2 |
| Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Direction indicator incorrect colour |1.5.1b| | 2 |
| Nearside Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Front Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Rear Direction indicator flashing more than 120 times per minute |1.5.1c| | 1 |
| Front Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Direction indicator incorrect colour |1.5.1b| | 1 |
| Nearside Indicator tell tale not functioning |1.5.2| | 1 |
| Offside Indicator tell tale not functioning |1.5.2| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Brake lever is damaged and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Steering control fouling between components which interferes with the free movement of the steering |2.1.2a| | 1 |
| Stop lamp affected by the operation of the horn |1.3.2| | 1 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Brake performance not tested |3.3| | 1 |
| Rear position lamp 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 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Handlebar handgrip not secure to handlebars. |2.1.1c| | 1 |
| Front Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Front Rear wheel rotation likely to be impeded |6.2.1b| | 1 |
| Front Stop lamp missing |1.3.3a| | 1 |
| Front Brake pipe likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Front Front position lamp insecure |1.1.1c| | 1 |
| Stop lamp does not emit a steady light |1.3.1b| | 1 |
| Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Front Gradient brake test indicates a binding brake |3.3.D1c| | 1 |
| Nearside Rear Upper Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Rear reflector on motorcycle missing |1.4.1| | 1 |
| Rear Brake effort inadequate at a wheel Cable adjustment wrong (1.2.1 (a) (i)) | 1 |
| Nearside Rear Direction indicator likely to become detached Rubber stem broken (4.4.1 (c) (ii)) | 1 |
| Front Brake caliper|s| insecure |3.2.A1j| | 1 |
| Front Brake fluid reservoir fluid level dangerously low |3.2.B1d| | 1 |
| Rear Brake lever excessively damaged |3.2.A1c| | 1 |
| Rear Rear shock absorber seal failed and leaking oil rear shocker leaking |2.4.A.1c| | 1 |
| Front Lower Fairings insecure and likely to impede the steering taxb disc holder |2.1.2e| | 1 |
| Front Steering headbearing has excessive free play |2.2.2| | 1 |
| Brake master cylinder leaking hydraulic fluid |3.2.B1e| | 1 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Direction indicators not working rear offside direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Offside Rear Direction indicator insecure |1.5.3b| | 1 |
| Offside Rear Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Front Horn is not continous or uniform |1.7.3c| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Seat insecure |6.2.1a| | 1 |
| Clutch lever positioned so it cannot be readily operated. |6.2.1g| | 1 |
| Centre Front Horn not working |1.7.3a| | 1 |
| Centre Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Nearside Front Brake disc|s| has excessive run out |3.2.A1m| | 1 |
| Centre Rear Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Centre Front Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Nearside Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Registration plate lamp issues | 1 |
| Front Brake hose is likely to be fouled or trapped by moving parts |3.2.B2c| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Front Brake hose stretched by suspension movement |3.2.B3b| | 1 |
| Rear Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Floor brake test indicates a binding brake |3.3.C2c| | 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 Front Direction indicator incorrect colour (4.4.3 (a)) | 1 |
| Centre Front Direction indicators affected by the operation of another lamp |1.5.1c| | 1 |
| Rear Brake lagging in operation (1.2.1 (d)) | 1 |
| Front suspension assembly component excessively bent |2.3.1| | 1 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 1 |
| Fairings so located that it is likely to impede the steering |2.1.2e| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Floor brake test indicates a binding brake |3.3.C2c| | 1 |
| Handlebar deformed |2.1.1b| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Front Stop lamp missing (4.3.1 (a) (ii)) | 1 |
| Rear Upper Exhaust mounting missing |7.1.1c| | 1 |
| Front mudguard can easily contact any fixed point of the motor bicycle. |2.3.7| | 1 |
| Offside Rear Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Rear Brake lever insecure |3.1.2a| | 1 |
| Exhaust mounting missing |7.1.1c| | 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 |
| Front position lamp insecure |1.1.1c| | 1 |
| Nearside Direction indicator not working |1.5.1c| | 1 |
| Headlamp insecure (4.1.1 (c)) | 1 |
| Rear Brake locking device missing |3.2.A1e| | 1 |
| Front Roller brake test indicates a severely juddering brake |3.3.A1b| | 1 |
| Front Brake disc|s| excessively pitted |3.2.A1l| | 1 |
| Fuel system component leaking onto drive housing |7.2.1a| | 1 |
| Rear Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking centre stand |6.1.1c| | 1 |
| Front Motorcycle structure excessively distorted |6.1.1a| | 1 |
| Front Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Brake back plate|s| insecure |3.2.A1j| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| Stop lamp not working front brake switch (4.3.1 (a) (ii)) | 1 |
| Front Brake indicates excessive fluctuation of brake effort (1.2.1 (e)) | 1 |
| Offside Rear Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 1 |
| Stop lamp flickers when tapped lightly by hand |1.3.1d| | 1 |
| Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Centre Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d| | 1 |
| Horn sounds harsh or grating |1.7.3c| | 1 |