Part no. 10739 STD


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Part no. 10739 STD

Product no.: 105
£117.30
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BSA - 500cc (A7, Star Twin), Year: 1949-50, compression ratio 7.5:1. (bore 2.4405") compression height 1.3/8, piston length 2.5/8 - 2 cylinder (flat bevelled head with valve pockets) Pin diameter .11/16. 1 - piston available (original Hepolite) 2 - pistons available (Gandini - Italy).
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