Classic Bike Parts, Pistons & Gifts

We sell a wide range of Classic Motorcycle pistons, catering for almost every model of classic bike. We also produce a wide range of classic motorcycle posters, artwork and limited edition prints. Products recently added to our catalogue include, metal signs and and gasket sets. Due to recent changes in US shipping costs, unfortunately, we are currently unable to post to this country. If customers enter a US address but select a different country to attempt to purchase, the payment will have to be refunded, less a refund charge which includes the charges made to us from Credit Card/Paypal.

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Home > Products > Classic Motorcycle Pistons > BSA Pistons > BSA Piston - 499cc OHV (B33, B34, B34 Gold Star, M33), Year: 1947-52, +.020

BSA Piston - 499cc OHV (B33, B34, B34 Gold Star, M33), Year: 1947-52, +.020

BSA Piston - 499cc OHV (B33, B34, B34 Gold Star, M33), Year: 1947-52, +.020
£111.96
Now Only £109.25
In stock


BSA - 499cc OHV (B33, B34, B34 Gold Star, M33) Year: 1947-52, compression ratio 6.8:1, long con rod, (bore 85mm +.020"") compression height 1.7/32, piston length 2.29/32 - 1 cylinder (flat head with valve pockets) Pin diameter .3/4. 2 - pistons available (Gandini Italy). See Part no. 12010 for higher comp 8.5:1

Product Code: 11341+.020

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