Minarelli V1 38.7mm Zeta Piston
Stock replacement 38.7mm piston from Zeta. The pistons are cast with "MINARELLI ASSO.W.1641" inside the crown.
New old stock. High quality Italian piston.
This is the 38.7mm piston that was found in most 1979 and new V1 engines. If you have an earlier V1, you probably have a 38.8mm piston.
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