316-435-3837 mike@stolcreek.com

Big Bore Kit – 1484cc

EdgePerformance billet big bore cylinders for Rotax 9 series engines.


  • 10.5:1 CR
  • 114HP
  • Comes with custom under cut EP forged pistons
  • Allows the use of 91-OCT fuel
  • Billet machined cylinders, not casted. Greater density and heat transfer
  • Media blasted finish for better heat dispatchment and increased surfase area
  • Not sleeved like other kits
  • Nikasil plated cylinders, will last forever. Same technology as OEM uses as well as all MC mfg.’s
  • Reports of 15c° lower CHT’s
  • Piston weight 318gr vs 465gr standard
  • CP custom forged race pistons. Lightweight and weight matched to +/- 1gram Nikasil cylinders allow for tighter cylinder/piston clearance