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

This is a 50cc aluminium cylinder kit from Metrakit for Minarelli AM6 engines fitted to Rieju, Beta, Fantic and Sherco DT. Its internal core is designed for strong output and it ranks among the reference sport kits in this displacement.

It features 5 transfer ports and a boosted exhaust port. The finish is excellent, with Nikasil coating and clean machining. The monoblock cylinder head uses a slightly recessed dome, a squish band and a hemispherical profile, giving it clearly sporty compression characteristics. The dual-ring piston ensures long service life.

The pack includes:

• Aluminium cylinder kit with Nikasil coating
• Dual-ring piston
• 25mm exhaust reducer

Benefits:

• 📈 Strong output for a sport 50cc kit
• 🎯 Sporty compression from the squish monoblock head
• 🛡️ Dual-ring piston for greater longevity
• ⚙️ 25mm reducer included to fit a stock-type exhaust

Note: the exhaust outlet is 28mm to fit racing exhausts, and the supplied 25mm reducer lets you fit a stock-type exhaust.