Description
[#10] Piston Yamaha OEM (Bws Zuma 50F & 50X) MOTOFORCE A 44mm stroke crankshaft with A 44mm stroke crankshaft with a 90mm connecting rod will be required for installation of the kit The exhaust flange for the standard 2 hole Minarelli cylinder is available separately Replacement piston for original Minarelli 4T cylinder