Advanced Clutch XAdvanced Clutch Flywheel Streetlite 600225 is a Streetlite flywheel, which is considerably lighter than stock and is the most durable flywheel offering from ACT. Materials are properly distributed for maximum strength, lower inertia, good heat tolerance and rigidity. ACT’s Streetlite flywheels are preferred for street or drag racing. ACT flywheels are serviceable and can be resurfaced with no need to purchase additional parts. Features: Noticeably improved engine response and acceleration, OE to mild 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 street and race use Forged, CNC machined and dynamically computer balanced for smooth high RPM reliability Specifications: Material: Chromoly Steel SFI Rating: 1.1 Replaceable Friction Surface: No Engine Balance: Internal Friction Surface Configuration: Raised Type: Streetlite Mounting Hardware Included: No Grade Type: Performance Mounting Hole Quantity: 8 Weight: 14.1 LB Tooth Quantity: 108 Friction Surface Diameter: 9.4 in Product Weight (lbs.): 14.1 SFI: 1.1 References Installation Instructions