600255 is an ACT XACT Prolite flywheel, built for dramatically improved engine response and acceleration with mild to moderate gear rattle. It starts from a heat-treated forging for strength and toughness, with an induction-hardened ring gear for maximum life. One-piece construction reduces the chance of failure and provides uniform, efficient heat transfer away from the clutch disc, eliminating warped inserts or loose ring gears. It is forged, CNC machined, and dynamically computer balanced for smooth high-RPM reliability, and is recommended for race use.
Installation InstructionsWarranty
Specifications:
- Flywheel Type: XACT Prolite, lightweight one-piece forged flywheel
- Heat-treated forging with induction-hardened ring gear for maximum ring gear life
- One-piece construction for uniform heat transfer and reduced failure points versus multi-piece designs
- CNC machined and dynamically computer balanced for high-RPM reliability
- Mild to moderate gear rattle; recommended for race use
- Backed by ACT's one-year limited warranty
- Part Number: 600255
Vehicle Applications:
- 1999 Mazda Miata 10th Anniversary
- 1990 Mazda Miata
- 1991 Mazda Miata
- 1992 Mazda Miata
- 1993 Mazda Miata
- 1994 Mazda Miata
- 1995 Mazda Miata
- 1996 Mazda Miata
- 1997 Mazda Miata
- 1999 Mazda Miata
- 2000 Mazda Miata
- 2001 Mazda Miata
- 2002 Mazda Miata
- 2003 Mazda Miata
- 2004 Mazda Miata
- 2005 Mazda Miata
- 1993 Mazda Miata LE
- 2000 Mazda Miata LS
- 2001 Mazda Miata LS
- 2002 Mazda Miata LS
- 2003 Mazda Miata LS
- 2004 Mazda Miata LS
- 2005 Mazda Miata LS
- 1994 Mazda Miata M Edition
- 1995 Mazda Miata M Edition
- 1996 Mazda Miata M Edition
- 1997 Mazda Miata M Edition
- 2004 Mazda Miata Mazdaspeed
- 2005 Mazda Miata Mazdaspeed
- 1991 Mazda Miata SE
- 2000 Mazda Miata SE
- 2001 Mazda Miata SE
- 2002 Mazda Miata SE
- 2003 Mazda Miata SE
- 2003 Mazda Miata Shinsen
- 1997 Mazda Miata STO
FAQ
What is the difference between a Prolite and Streetlite flywheel?
Prolite is ACT's lighter-weight flywheel option, giving the most dramatic improvement in engine response and acceleration but with mild to moderate gear rattle, and it is recommended for race use. Streetlite is a heavier alternative built for street and race use with less gear rattle.
Why is one-piece construction important on a flywheel?
One-piece construction removes the extra joints found in multi-piece flywheels, which lowers the chance of failure and lets heat transfer away from the clutch disc more evenly.
Does this flywheel need to be balanced after installation?
No, ACT CNC machines and dynamically computer balances every XACT flywheel at the factory for high-RPM reliability.
Is this flywheel suitable for daily street driving?
ACT recommends the Prolite flywheel primarily for race use because of its mild to moderate gear rattle; drivers who want a quieter street-focused option should consider ACT's Streetlite flywheel instead.