Malossi Cast-Iron Cylinder Kit (Code 31 6998), featuring a 47mm bore and 12mm wrist pin. Designed with 6 transfer ports and a durable 2-ring piston, this thermal unit delivers strong torque, improved throttle response, and long-lasting reliability.
Malossi’s cast-iron kits are known for being the best first-step performance upgrade, offering excellent durability while remaining compatible with most stock or approved exhaust systems. Each kit is manufactured to Malossi’s extremely tight tolerances—cylinder and piston pairing is selected within 20 microns—ensuring optimal compression, smooth operation, and exceptional longevity.
This kit is ideal for riders seeking a dependable power boost without sacrificing daily rideability or engine life.
Features:
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Malossi Code: 31 6998
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47mm bore, 12mm wrist pin
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Cast-iron cylinder for excellent durability
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6 transfer ports for improved airflow and efficiency
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2-ring piston for reliable sealing and long service life
