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Central Mount Air-Filter, Amal 900, Domed Back

Part Number 633-900/B

At last, the rare domed central mount filter assembly is back in production, after a gap of over 40 years!
As used on many bikes equipped with the 900 series AMAL Concentric, such as the 1969 BSA Thunderbolt 650.

Also available: domed back plate only, BCS #633-11, to convert the standard flat back filter assemblies into this style.