New '90-'93 Mazda Miata ACT HD 4-Puck Solid Hub Clutch Kit - ZM1-HDR4

If you are searching the Spec Miata rules for clutch kits, the rules translation can be a little tricky. The rule books list Mazdaspeed part number 0000-02-5401-SS for an ACT pressure plate, but do not list the ACT part number. The clutch disk option is open for SM rules, but we have found that the ACT 4-Puck Solid Hub Clutch disc works very well for us. So, we did the legwork for you and found the appropriate complete ACT clutch kit that includes the rule book legal ACT pressure plate, 4-Puck solid hub disc, release bearing, alignment tool, and pilot bearing, everything you need to change the clutch in your SM. You can order with confidence and rest assured that you are getting legal parts with this kit, as well as a great price!

HD Pressure Plate:
Clamping loads increase 20% - 50%. Pedal effort feels stock to moderate. SFI certified to ensure safety.

R4 Solid Hub 4-Pad Disc:
Recommended for drag and road racing. Race geared disc that would be a little too harsh on the street but perfect for race cars or non-daily driven track cars. This disc is a popular choice for stock based road racing cars. Benefits are: increased torque capacity, fastest shifts, low inertia, good durability but shortened spline life, sharper engagement than sprung hub disc.