Act 600390 ACT XACT Prolite Flywheels tires-wheels-hubs transmissions and shaft drive that

transmissions and shaft drive that do not have a wet clutch

SLP #09-341

with depressed center

fits 1-3/8in

Act 600390 ACT XACT Prolite Flywheels tires-wheels-hubs transmissions and shaft drive thatDramatically improved engine response and acceleration, mild to moderate gear rattle; Heat treated forging for strength and toughness, induction hardened ring gears for maximum life; One piece construction allows less opportunity for failure and provides uniform efficient heat transfer from the clutch disc. No more warped inserts or loose ring gears; Recommended for race use; Forged, CNC machined and dynamically computer balanced for smooth high RPM