Metrakit 50cc Cast Iron Cylinder Kit – AM6 Rieju, Beta, Fantic, Sherco DT

The Metrakit 50cc cast iron cylinder kit is built for Minarelli AM6 engines on Rieju, Beta, Fantic and Sherco DT. Its optimised internal core delivers excellent output, placing it among the sportiest kits in this displacement class.

The kit features 5 intake transfer ports and a booster exhaust port, with clean machining throughout. The monobloc cylinder head offers a squish band and hemispherical profile for clearly sporty compression. The dual-ring piston ensures good longevity.

The kit includes:

• 50cc cast iron cylinder
• Monobloc cylinder head
• Dual-ring piston
• 25mm exhaust reducer

Benefits:

• 📈 Sporty output from the optimised core
• 🎯 5 intake transfer ports for sharper throttle response
• 🔧 Squish cylinder head for sporty compression
• 🛡️ Dual-ring piston for extra longevity
• ⚙️ 25mm reducer included for a stock exhaust

Note: the exhaust port is 28mm to fit racing pipes, but Metrakit includes a 25mm reducer to fit a stock-type exhaust.