TRIUMPH Big bore piston set 650 to 750 STD Aerco UK Made Hastings rings standard
$299.99
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You will get the one brand new set of pistons and rings for your big bore kit. Unit 650 to 750 / The pistons are Aerco, UK Made the rings are Hastings USA Made. The pistons are 75.83mm at the skirt. This is for 1965 to 1971 650 engines where a big bore kit is installed. 1973 and up are 750 engines and these are not correct for those.
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