Athena Big Bore Cylinder 70cc Minarelli vertical AC 10mm pin

Aluminum Cylinder, from the manufacturer Athena Racing for Minarelli Vertical AC engines.
This is a cylinder equipped with a Piston with 1 single ring, 10 mm pin, 47.6 mm diameter, and cylinder head.
Manufactured from aluminum and equipped with a flat-head piston with one ring, this Cylinder from Athena is the ideal base for a racing-type setup with good performance, reaching between 16 and 19 hp with proper tuning.
Due to its innovative design for bolting the cylinder directly to the crankcase and the cylinder head to the cylinder, it is possible to achieve 5 transfer ports and a trapezoidal exhaust outlet with exhaust booster.

Compression ratio: 13.8:1

Adaptable to Minarelli Vertical engines. Yamaha Bw's, MBK Booster...

The kit includes:

• Aluminum Cylinder.
• Piston with 1 ring.
• Gasket set
• Cylinder head.
• Carbon reeds.

Attention: To install this cylinder, a reinforced crankshaft is recommended.

Subs 080000