1994-2005 Mazda Miata Lightweight Single Mass Chromoly Flywheel by XClutch The XClutch Lightweight Chromoly range has been engineered and developed to provide an even lighter version of the standard chromoly flywheel options. These flywheels are designed for applications where throttle response is critical such as circuit racing applications and are made from 4140 Chromoly. Features Flywheel Step: -0.787 Flywheel Weight (lbs): 10.31 Friction Surface Configuration: Recessed Material: Chromoly Tooth Quantity: 112 Benefits Improved Performance and Reliability Applications 1994-2005 Mazda Miata What\’s In The Box? 1 – Flywheel Warranty XClutch offers a limited 12 month/12,000 mile warranty