| Most common failures | No# failures |
|---|
| Headlamp aim out of alignment | 18 |
| Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 12 |
| Exhaust is leaking and excessively noisey |7.1.1b| | 10 |
| Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 9 |
| Rear Brake lever has inadequate reserve travel |3.1.3b| | 8 |
| Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 6 |
| Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 6 |
| Horn not working |1.7.3a| | 6 |
| Rear Stop lamp remains on when the brake is released |1.3.1e| | 6 |
| Stop lamp affected by the operation of another lamp |1.3.2| | 6 |
| Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 5 |
| Registration plate issues | 5 |
| Rear Motorcycle structure excessively corroded |6.1.1a| | 5 |
| Steering headbearing has excessive free play |2.2.2| | 4 |
| Direction indicators affected by the operation of another lamp |1.5.1c| | 4 |
| Front Direction indicators affected by the operation of another lamp |1.5.1c| | 4 |
| Rear reflector on motorcycle missing |1.4.1| | 3 |
| Handlebar mounting clamp bolt loose |2.1.1a| | 3 |
| Front Steering headbearing has excessive free play |2.2.2| | 3 |
| Motorcycle structure excessively corroded |6.1.1a| | 3 |
| Rear Roller brake test indicates a sticking brake |3.3.A1a| | 3 |
| Rear Brake lever mounting insecure |3.1.2a| | 3 |
| Horn not loud enough to be heard by another road user |1.7.3a| | 3 |
| Centre Motorcycle structure excessively corroded |6.1.1a| | 3 |
| Front Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Front Direction indicator not working |1.5.1c| | 3 |
| Rear Direction indicator not working |1.5.1c| | 3 |
| Brake lever has inadequate reserve travel |3.1.3b| | 3 |
| Rear Direction indicators affected by the operation of another lamp |1.5.1c| | 3 |
| Direction indicator affected by the operation of another lamp |1.5.1c| | 3 |
| Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 3 |
| Headlamp at least one does not illuminate on main beam |1.2.2a|ii|| | 3 |
| Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i|| | 2 |
| Front suspension has excessive stiffness in the suspension movement. |2.3.6b| | 2 |
| Headlamp insecure |1.2.3b| | 2 |
| Offside Front Direction indicator not working |1.5.1c| | 2 |
| Rear suspension bush has excessive free play |2.4.A2a|i|| | 2 |
| Front Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Front Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 2 |
| Headlamp dipped beam affected by the operation of another lamp |1.2.2c| | 2 |
| Exhaust excessively deteriorated |7.1.1a| | 2 |
| Rear Brake lever insecure |3.1.2a| | 2 |
| Wheel alignment incorrect which adversely affects the steering |2.5.1| | 2 |
| Nearside Rear Brake lever has inadequate reserve travel |3.1.3b| | 2 |
| Nearside Front Direction indicator insecure |1.5.3b| | 2 |
| Lower Motorcycle structure excessively corroded |6.1.1a| | 2 |
| Rear Wheel has an excessively distorted bead rim. |4.2.2| | 2 |
| Front Roller brake test indicates a binding brake |3.3.A1a| | 2 |
| Rear Exhaust is leaking and excessively noisey |7.1.1b| | 2 |
| Direction indicators not working |1.5.1c| | 2 |
| Stop lamp remains on when the brake is released |1.3.1e| | 2 |
| Rear Floor brake test indicates a sticking brake |3.3.C2c| | 2 |
| Rear Roller brake test indicates brake effort rise disproportional to brake lever or pedal effort |3.3.A1c| | 2 |
| Front Front suspension assembly has excessive free play in the pivot bearings. |2.3.2| | 2 |
| Front suspension assembly component missing |2.3.1| | 1 |
| Rear wheel bearings have excessive free play |2.4.A.2c| | 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 |
| Headlamp aim headlamp deteriorated and function impaired |1.2.3a| | 1 |
| Centre Motorcycle structure excessively corroded Frame by engine mount |6.1.1a| | 1 |
| Rear position lamp incorrect colour |1.1.2b| | 1 |
| Rear suspension bush has excessive free play swinging arm/engine |2.4.A2a|i|| | 1 |
| Rear suspension bush excessively deteriorated swinging arm/engine |2.4.A2a|i|| | 1 |
| Nearside Rear suspension bush has excessive free play |2.4.A2a|i|| | 1 |
| Fuel system component leaking carburettor |7.2.1a| | 1 |
| Centre Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Front Front suspension assembly component excessively bent |2.3.1| | 1 |
| Lower Rear shock absorber insecurely mounted |2.4.A.3b| | 1 |
| Front Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c| | 1 |
| Riders seat insecure |6.2.1a| | 1 |
| Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b| | 1 |
| Front Stop lamp does not illuminate immediately a brake applies |1.3.1a| | 1 |
| Nearside Front Direction indicator not working |1.5.1c| | 1 |
| Nearside Rear Direction indicator not working |1.5.1c| | 1 |
| Offside Rear Direction indicator not working |1.5.1c| | 1 |
| Handlebar mounting clamp loose |2.1.1a| | 1 |
| Horn control defective |1.7.2a| | 1 |
| Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| 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 Roller brake test indicates a severely grabbing brake |3.3.A1b| | 1 |
| Nearside Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Offside Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Rear position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Floor brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.C1b| | 1 |
| Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Headlamp main beam affected by the operation of another lamp |1.2.2c| | 1 |
| Centre Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Front Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Nearside Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Offside Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Centre Front Brake lever has inadequate reserve travel |3.1.3b| | 1 |
| Nearside Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Offside Rear Fairings insecure and likely to impede the steering |2.1.2e| | 1 |
| Front Upper Steering headbearing has excessive free play |2.2.2| | 1 |
| Exhaust mounting does not fully support the exhaust system |7.1.1.c| | 1 |
| Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Rear Wheel has an excessively eccentric bead rim. |4.2.2| | 1 |
| Throttle operating incorrectly |6.2.1f| | 1 |
| Nearside Rear Lower Motorcycle structure insecure and likely to affect the correct functioning of the steering or braking |6.1.1c| | 1 |
| Stop lamp damaged and function impaired |1.3.3a| | 1 |
| Horn emits 2 or more alternating tones |1.7.3b| | 1 |
| Nearside Direction indicator flashing less than 60 times a minute |1.5.1c| | 1 |
| Offside Direction indicator flashing less than 60 times a minute |1.5.1c| | 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 indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Wheel alignment incorrect which adversely affects the handling |2.5.1| | 1 |
| Front Front wheel spindle securing nut|s| loose |2.3.5a| | 1 |
| Offside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Nearside Rear suspension bush excessively deteriorated |2.4.A2a|i|| | 1 |
| Nearside Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Offside Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Front Wheel has an excessively distorted bead rim. |4.2.2| | 1 |
| Rear Stop lamp affected by the operation of another lamp |1.3.2| | 1 |
| Offside Rear Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Nearside Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b| | 1 |
| Nearside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| Centre Front Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Steering movement excessively stiff with the weight on the lower bearing |2.2.1a| | 1 |
| Front Direction indicator damaged and function impaired |1.5.3a| | 1 |
| Rear shock absorber seal failed and leaking oil |2.4.A.1c| | 1 |
| Rear wheel has a loose wheel nut|s| |4.2.3a| | 1 |
| Front Horn not loud enough to be heard by another road user |1.7.3a| | 1 |
| Front Brake component has restricted free movement and operation is likely to be impeded |3.2.A1h| | 1 |
| Offside Rear Exhaust is leaking and excessively noisey |7.1.1b| | 1 |
| All position lamps do not illuminate immediately when switched on |1.1.3a| | 1 |
| Upper Direction indicators flashing less than 60 times a minute |1.5.1c| | 1 |
| Rear Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Centre Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Rear suspension has corrosion which reduces the strength of a load bearing member or its supporting structure. |2.4.A.2d| | 1 |
| Centre Rear Lower Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Direction indicator not working |1.5.1c| | 1 |
| Nearside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Front Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Nearside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Offside Rear Direction indicator affected by the operation of another lamp |1.5.1c| | 1 |
| Fuel cap does not fasten securely maintaining the sealing arrangement |7.2.2b| | 1 |
| An item not tested |Manual| | 1 |
| Front Front suspension assembly excessive wear or free play in a front suspension component |2.3.4| | 1 |
| Front Brake linkage has abnormal movement due to maladjustment |3.2.A1i| | 1 |
| All position lamps adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Front Brake lever cannot be released smoothly |3.1.3d| | 1 |
| Front Steering lock stop ineffective |2.1.3| | 1 |
| Roller brake test indicates a sticking brake |3.3.A1a| | 1 |
| Brake lever attachment screws loose |3.1.2b| | 1 |
| Nearside Steering lock stop ineffective |2.1.3| | 1 |
| Centre Lower Motorcycle structure excessively corroded |6.1.1a| | 1 |
| Centre Lower Motorcycle structure cracked |6.1.1a| | 1 |
| Rear Brake lining|s| less than 1.5 mm thick |3.2.A1f|i|| | 1 |
| Motorcycle structure excessively damaged |6.1.1a| | 1 |
| Rear Brake lever pivots excessively worn |3.1.3a| | 1 |
| Exhaust mounting missing |7.1.1c| | 1 |
| Throttle has a significant change in engine speed whilst moving the steering from lock to lock |2.1.4| | 1 |
| Front Brake lever cannot be applied smoothly |3.1.3d| | 1 |
| Front position lamp adversely affected by the operation of another lamp |1.1.3b| | 1 |
| Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a| | 1 |
| Front Wheel corroded significantly reducing the original strength |4.2.1a| | 1 |
| Rear Exhaust excessively deteriorated |7.1.1a| | 1 |
| Steering control handlebar movement restricted by taut cables |2.1.2c| | 1 |
| Nearside Front Locking devices not correctly fitted which may make the motor bicycle dangerous to ride |6.2.1h| | 1 |
| Offside Front Direction indicator insecure |1.5.3b| | 1 |
| Front position lamp insecure |1.1.1c| | 1 |
| Rear Brake lever is bent and the brake cannot be readily applied |3.1.3c| | 1 |
| Rear Roller brake test indicates a binding brake |3.3.A1a| | 1 |
| Stop lamp remains on when the brakes are released | 1 |
| Rear Stop lamp not working (4.3.1 (a) (ii)) | 1 |
| Rear Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Front Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Central Lower Motorcycle structure is fractured and structural rigidity is significantly reduced repair plate welds have failed. (6.1.1 (a) (i)) | 1 |
| Offside Front Lower Motorcycle structure corroded to the extent that the rigidity of the assembly is significantly reduced brackets holding floor have corroded away. (6.1.1 (c) (i)) | 1 |
| Offside Front Lower Motorcycle structure joining/attachment plate or fastening so insecure that structural rigidity is seriously reduced repair brackets holding floor not secure. (6.1.1 (b) (ii)) | 1 |
| Rear Position lamp not working (4.2.1 (a)) | 1 |
| Headlamp not working on dipped beam (4.1.1 (a) (ii)) | 1 |
| Nearside Rear Brake lever has insufficient reserve travel (1.1.2 (a)) | 1 |
| Stop lamp adversely affected by the operation of another lamp (4.3.3 (b)) | 1 |
| Front Wheel excessively distorted (5.2.2 (c) (i)) | 1 |