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MOT History from tests of petrol BSA BSAs year 1957

Review the list of common BSA BSA failures below or to perform a specific mot history check on your BSA then use our popular KnowYourCar service

mot history
Pass percent:91.39%
(The average a petrol BSA BSA year 1957 passes without issue)
Based on:836 MOT Tests
Most common failuresNo# failures
Headlamp aim out of alignment9
Stop lamp does not illuminate immediately a brake applies |1.3.1a|7
Rear position lamp does not illuminate immediately when it is switched on |1.1.3a|6
Steering headbearing has excessive free play |2.2.2|5
Horn not working |1.7.3a|5
Headlamp at least one does not illuminate on dipped beam |1.2.2a|i||4
Horn not loud enough to be heard by another road user |1.7.3a|3
Rear Stop lamp does not illuminate immediately a brake applies |1.3.1a|3
Rear suspension bush has excessive free play |2.4.A2a|i||2
Rear wheel bearings have excessive free play |2.4.A.2c|2
Front Front wheel bearings have excessive free play |2.3.5b|2
Front wheel bearings have excessive free play |2.3.5b|2
Nearside Rear Footrest missing |6.2.1a|2
Front Steering headbearing has excessive free play |2.2.2|2
Roller brake test The less effective brake control does not achieve an efficiency of 25%. |3.3.A2b|2
Wheel alignment incorrect which adversely affects the handling |2.5.1|2
Front position lamp does not illuminate immediately when switched on |1.1.3a|2
Offside Rear Footrest missing |6.2.1a|2
Rear Rear position lamp does not illuminate immediately when it is switched on |1.1.3a|1
Rear Brake lever has inadequate reserve travel |3.1.3b|1
Front Headlamp at least one does not illuminate on dipped beam |1.2.2a|i||1
Rear Rear shock absorber has inadequate damping effect. |2.4.A.3b|1
Wheel alignment incorrect which adversely affects the steering |2.5.1|1
Roller brake test No brake control achieves an efficiency of 30%. |3.3.A2a|1
Rear Stop lamp remains on when the brake is released |1.3.1e|1
Front Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d|1
Nearside Front wheel has a missing wheel bolt|s| |4.2.3a|1
Nearside Front suspension assembly has an insecure fork brace |2.3.4d|1
Offside Front suspension assembly has an insecure fork brace |2.3.4d|1
Fuel system component leaking |7.2.1a|1
Offside Front Lower Roller brake test indicates brake effort fall disproportional to brake lever or pedal effort |3.3.A1c|1
Centre Rear Upper Stop lamp missing |1.3.3a|1
Offside Front Upper Throttle operating incorrectly |6.2.1f|1
Centre Rear Upper Riders seat insecure |6.2.1a|1
Centre Front Upper Steering headbearing has excessive free play |2.2.2|1
Drive chain excessively loose |6.2.1d|1
Rear Roller brake test indicates excessive fluctuation of brake effort |3.3.A1d|1
Rear Rear wheel bearings have excessive free play |2.4.A.2c|1
Rear Brake drum|s| insecure |3.2.A1g|1
Wheel alignment incorrect which adversely affects the handling (2.5.1)1
Nearside Steering lock stop missing (2.1.3)1
Offside Steering lock stop missing (2.1.3)1
Nearside Rear Footrest missing (6.2.1a)1
Offside Rear Footrest missing (6.2.1a)1
Throttle has a significant change in engine speed whilst moving the steering from lock to lock (2.1.4)1
Rear Drive chain sprocket carrier worn to excess |6.2.1e|1
Front Rear wheel rotation likely to be impeded |6.2.1b|1
Rear Rear wheel has a loose wheel nut|s| |4.2.3a|1
Headlamp aim beam image kick up to the offside |1.6|1
Front Brake lever mounting cracked |3.1.2c|1
Front Wheel spoke excessively loose |4.2.1b|1
Nearside Front Handlebar handgrip not secure to handlebars. |2.1.1c|1
Offside Front Handlebar handgrip not secure to handlebars. |2.1.1c|1
Front Fuel cap sealing washer deteriorated |7.2.2c|1
Nearside Rear Footrest insecure |6.2.1a|1
Front wheel bearings are excessively rough |2.3.5b|1
Rear reflector on motorcycle missing |1.4.1|1
Steering control handlebar movement restricted by taut cables |2.1.2c|1
Exhaust mounting does not fully support the exhaust system |7.1.1.c|1
Nearside Footrest insecure |6.2.1a|1
Steering movement excessively stiff with the weight on the lower bearing |2.2.1a|1
Rear Wheel spoke excessively loose |4.2.1b|1
Offside Rear Rear suspension bush has excessive free play |2.4.A2a|i||1
Rear wheel rotation likely to be impeded |6.2.1b|1
Steering control has Insufficient clearance at full lock affecting the riders operation of the controls |2.1.2b|1
Registration plate issues1
Headlamp at least one does not illuminate on main beam |1.2.2a|ii||1
Nearside Handlebar handgrip not secure to handlebars. |2.1.1c|1
Nearside Front Footrest insecure |6.2.1a|1
Front Brake lever attachment screws loose |3.1.2b|1
Throttle operating incorrectly |6.2.1f|1
Front suspension assembly component loose |2.3.1|1
Fuel system component insecure |7.2.1b|1
Front Roller brake test indicates a binding brake |3.3.A1a|1
Rear Stop lamp deteriorated and function impaired |1.3.3a|1

We get to these numbers by trawling through over 1 billion MOT test results since 2004 and crunched the numbers. We remove anything to do with Tyres, as they are model independent and group together common non-model specific issues. We are trying to get to a picture of what models have what issues.

Please note: We take the data from the DVSA. This data is raw and can contain typos and spelling mistakes that garages may have entered while recording a MOT result. Specifically miss-match on names of models and makes. We are constantly cleaning the data so bear with the odd issue.

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