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  See more parts for Mazda Miata
Select the year of your Mazda Miata:
ACT 4 Pad Sprung Race Disc Mazda Miata 1990-1997 - 4200105
ACT 4 Pad Sprung Race Disc Mazda Miata 1990-1997 - 4200105 - Image 3 ACT 4 Pad Sprung Race Disc Mazda Miata 1990-1997 - 4200105 - Image 2 ACT 4 Pad Sprung Race Disc Mazda Miata 1990-1997 - 4200105 - Image 3

If you're looking to take your Mazda Miata's performance up a notch, the Advanced Clutch 4 Pad Sprung Race Disc (model 4200105) is definitely worth your attention. This isn't just any race disc; it's a robust 4-pad design that's crafted with high-quality ceramic friction materials. Sure, the engagement can feel a bit harsher compared to stock options, but that’s the trade-off for quicker shifts—something you'll appreciate when you're pushing your car to the limit.

One of the standout features of this disc is its heavy-duty torsional dampening springs. They’re tougher than your standard springs and are designed to handle the demands of racing. You’ll find they’ve got the right sizes and spring rates for this application, ensuring that everything works in harmony. Plus, the heat-treated spring steel drive plate adds an extra layer of durability, making it ideal for those smaller disc sizes you often find in compact engines like the Miata.

Install Instructions:

Features that stand out:

  • You get aggressive engagement with quick shifts, which can lead to some mild gear rattle—just part of the racing experience.
  • The premium ceramic friction materials strike a balance between moderate wear rates and high heat tolerance, so you can push your Miata without worrying too much about overheating.
  • Thanks to the wraparound spring windows and thicker retainer stampings, this disc is built to support and reduce stress concentrations, boosting its strength and reliability.
  • Keep in mind, this disc is recommended for race use only. If you're serious about track days, it’s a solid choice.
  • With high burst strength, it holds 28% more torque than typical organic materials—definitely a plus when you’re demanding more from your engine.

Specifications:

  • Diameter: 7.9 inches (200 mm)
  • Spline Quantity: 22
  • Grade Type: Performance
  • Friction Plate: No
  • Disc Material: Ceramic
  • Splined Bore Diameter: 0.9375 inches
  • Disc Type: Sprung
  • Product Weight: 2.6 lbs
  • SFI Rating: 1.1

This disc is specifically designed to fit the Mazda Miata models from 1990 to 1997. If you're ready to enhance your ride's performance and enjoy a more engaging driving experience, this race disc might just be what you need.

Other Part Numbers:
ACT #act4200105

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle
1990-1997
 Mazda Miata

ACT Banner

ACT ? Advanced Clutch Technology | Clutch Kits & Flywheels Built to Handle Real Power

If you've added boost, tuned for more power, or simply want better throttle control, then your stock clutch won't cut it. That?s where ACT (Advanced Clutch Technology) comes in delivering high-performance clutch kits and flywheels designed for real drivers who push their builds on the street, strip, or track.

ACT?s lineup includes everything from daily driver friendly HD kits to hardcore twin disc setups for serious horsepower. Whether you?re launching hard in a WRX, drifting in a 370Z, or canyon carving in an M3, ACT gives you the torque capacity and engagement you need without sacrificing drivability.

Why ACT? Because Power Without Control Is Useless.
  • Hold More Power Engineered to handle turbo, supercharger, and high-compression builds
  • Faster Engagement Stronger pressure plates for better bite off the line
  • Better Pedal Feel Balanced response without going full race-car stiff
  • Reduced Rotational Mass Lightweight flywheels improve rev-matching and response
  • No Guesswork Direct-fit applications, no fabbing, no hassle
ACT Clutch Kits and Flywheels Fit the Cars Enthusiasts Build

ACT doesn?t just make universal performance parts ? they build complete, vehicle-specific clutch solutions for enthusiast favorites. Whether you daily a Civic Type R, track a Subaru STI, drift a 240SX, or drag a Mustang GT, ACT offers the right clutch to match your build goals.

Top supported platforms include the Nissan 350Z/370Z, Toyota Supra A90, Chevy Camaro SS/ZL1, Mitsubishi Evo, Ford Focus RS/ST, and BMW M3/M4 ? each with clutch options tuned to your driving needs.

What ACT Offers:
  • Performance Clutch Kits From HD street kits to twin-disc race systems
  • Clutch Discs 6-puck, full-face, rigid or sprung to match your style
  • Pressure Plates Heavy-duty options that increase clamp load without sacrificing control
  • Chromoly Lightweight Flywheels Quicker revs, smoother shifts, and less drivetrain stress
  • Complete Hardware Kits Everything you need for a proper install
Performance Tested. Driver Approved.

ACT isn?t hype ? it?s proven. Their clutches are SFI-certified, track-tested, and used by racers in drag, time attack, autocross, drift, and rally. But what really matters? They hold power, last longer, and feel right even after hundreds of hard launches or hours of canyon carving.

Whether you're upgrading for more power or replacing a tired OEM clutch, ACT gives you the bite, strength, and feel to drive harder with confidence. No compromises, no excuses just parts that work when it matters.

ACT warrants all products to be free of defects in materials and workmanship for normal use and service for a period of one (1) year from retail purchase. Written notice must be immediately given to ACT within the warranty period. We require a copy of the purchase receipt showing the unit was purchased from an Authorized Dealer or Advanced Clutch Technology directly to verify the product is under warranty. Products purchased used do not carry a warranty. This warranty is to the original purchaser and is non-transferable. All non-warranty items are subject to a $50 inspection bench test fee.

ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.

ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.

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