The Malossi MHR cylinder kit is a 70cc big-bore top-end kit for air-cooled horizontal Minarelli 2-stroke engines. This is a replica of the cylinder Malossi uses on its own racing team — Nikasil-lined aluminum cylinder for reduced friction and superior heat dissipation, paired with an HTSR aluminum cylinder head and a 47mm Asso forged piston. Fits Genuine Buddy 50, Roughhouse 50/Sport, Yamaha Jog, Zuma 50, and Vino 50 2T. Made in Italy.
Replacement pistons (10mm wrist pin) and piston rings are available separately.
70cc displacement — up from stock 50cc
Nikasil-lined aluminum cylinder for reduced friction and heat dissipation
HTSR aluminum cylinder head (Malossi racing spec)
47mm Asso forged aluminum piston
10mm wrist pin with needle bearing
Includes 2 piston rings, circlip, base gasket, and head gasket
Made in Italy by Malossi
Specifications
Displacement: 70cc
Bore: 47mm
Wrist Pin: 10mm
Cylinder: Nikasil-lined aluminum
Head: HTSR aluminum (Malossi racing spec)
Piston: 47mm Asso forged aluminum
Kit Includes: Cylinder, HTSR head, 47mm piston, 10mm wrist pin, needle bearing, 2 piston rings, circlip, base gasket, head gasket
