Dramatically 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 reliability
WarrantyInstallation Instructions
This Part Fits:
| Year | Make | Model | Submodel |
|---|---|---|---|
| 1999 | Mazda | Miata | 10th Anniversary |
| 1990-1997,1999-2005 | Mazda | Miata | Base |
| 1993 | Mazda | Miata | LE |
| 2000-2005 | Mazda | Miata | LS |
| 1994-1997 | Mazda | Miata | M Edition |
| 2004-2005 | Mazda | Miata | Mazdaspeed |
| 1991,2000-2003 | Mazda | Miata | SE |
| 2003 | Mazda | Miata | Shinsen |
| 1997 | Mazda | Miata | STO |
| Brand | ACT |
|---|---|
| Type | Flywheels |
| SKU | ACT600255 |
| Weight | 11.3 lb |
| Make | Mazda |
| Model | MX-5 Miata |
| Mfr. Part # | 600255 |
| Flywheel type | Prolite |
| Material | Chromoly Steel |
| Friction surface diameter | 8.8 in (225 mm) |
| Ring gear teeth | 112 |
| Weight | 9.4 lb |
| SFI specification | SFI 1.1 |
| Recommended use | Recommended for race use |
| Feel | Dramatically improved engine response and acceleration, mild to moderate gear rattle |
Fits 1990–1997, 1999–2005 Mazda MX-5 Miata
- 1990–1997, 1999–2005 Mazda Miata (10th Anniversary, Base, LE, LS, M Edition, Mazdaspeed, SE, STO, Shinsen)
Always confirm engine, transmission and chassis before ordering. Call us if you are unsure.
Shipping: Some items may qualify for free shipping with Local Pickup in store. All orders have a 2–3 business day processing time. Some orders may have extended shipping times based on current stock status — we'll confirm the lead time at order placement.
Returns: Accepted within 30 days of delivery for unused product in original packaging. Returns are subject to a 25% Restocking Fee. Special-order and custom-built items are final sale.
Warranty: All products carry the manufacturer's full warranty. Coverage is honored through PMD as your authorized dealer.
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