Replacement piston for the Stage6 Streetrace 70cc cylinder kit (Minarelli vertical). Ideal when compression or performance starts to drop. Comes complete with 10mm piston pin, two piston rings, and circlips. 

47mm piston with 10mm, suitable for Yamaha BW’s / MBK Booster with Minarelli vertical engine. For best results, replace the cylinder gasket set during installation.