SKU: 83977675568

Z64-XXR4 - MaXX/Race Rigid 4 Pad

Sale price$263.70 Regular price$293.00
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Ships within 48 hours · Estimated delivery Sep 23 - Sep 28

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Description

Z64-XXR4 - MaXX/Race Rigid 4 PadThe MaXX Race Rigid 4 Pad clutch kit is a high performance component designed for serious enthusiasts and race applications. Here's a breakdown of its specifications: Product Weight: 14. 8 lbs. Torque Capacity: 625 ft lbs. Torque Capacity Over OE: 156% Disc Material: Ceramic Clutch Disc Diameter: 9. 4 inches 240 millimeters Input Shaft Diameter: 1 inch Pressure Plate Type: Maxx Xtreme Warranty: 12 Months Description: The Z64 XXR4 kit features a MaXX

The MaXX/Race Rigid 4 Pad clutch kit is a high-performance component designed for serious enthusiasts and race applications. Here's a breakdown of its specifications:

  • Product Weight: 14.8 lbs.
  • Torque Capacity: 625 ft/lbs.
  • Torque Capacity Over OE: 156%
  • Disc Material: Ceramic
  • Clutch Disc Diameter: 9.4 inches / 240 millimeters
  • Input Shaft Diameter: 1 inch
  • Pressure Plate Type: Maxx Xtreme
  • Warranty: 12 Months

Description: The Z64-XXR4 kit features a MaXX pressure plate designed to cater to the demands of high-performance applications. ACT MaXX pressure plates utilize an exclusive diaphragm design to enhance clamp load, reduce deflection, and extend clutch life. These diaphragms undergo a rigorous four-stage heat-treating process for optimal performance. Precision cover stampings ensure rigidity and consistency.

The clutch kit employs 4-pad rigid race discs crafted from high-quality ceramic friction materials. The chrome-moly hub undergoes heat treatment to enhance strength and durability. Its lightweight, rigid design facilitates quicker shifts and ensures trouble-free service. The 4-pad rigid race disc offers harsher engagement but results in faster shifting, making it well-suited for smaller disc sizes and engines.

Characteristics:

  • Feel: Heavy to very heavy pedal effort, aggressive engagement, quickest shifts, increased gear rattle
  • Life: Moderate friction life, extended by ACT's exclusive diaphragm design; rigid design may increase spline wear
  • Quality: Carefully engineered, precisely assembled, accurately balanced, utilizes select ceramic friction materials for high heat tolerance and maximum performance
  • Recommended Use: Strictly recommended for race use only
  • ACT Difference: 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Vehicle Fitment: The clutch kit is compatible with various Mazda and Ford models equipped with turbocharged engines, including:

  • 1988-1992 Mazda 626 Turbo
  • 1988-1992 Mazda MX-6 GT
  • 1988 Mazda 929 Base
  • 1989-1991 Ford Probe GT

This kit offers enthusiasts a reliable and high-performance clutch solution tailored to the demands of racing and high-performance driving scenarios.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 83977675568

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Glass
Battle Creek, US
★★★★★ 5
I stay on your foot they don’t slip in your shoe
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
This is the only socks I wear Under Armour because they stay in place I wear a size 8, but they’re more comfortable with a large instead of a medium, but I wear both because I have them already and you can pull them to stretch them out a little bit
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Reviewed in the United States on May 12, 2026
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Lauren
Phoenix, US
★★★★★ 5
Great fit, truly doesn’t slide off heel
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium, Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
I’ve scoured all the lands looking for a no-show sock that was 1) thin, 2) quality, soft, breathable material, 3) didn’t dig into my feet/heels, 4) doesn’t shrink, and most importantly 5) stays on the back of my heel without a bulky non-slip rubber piece and these check all the boxes! Perfect for low profile women’s work shoes like Keds, etc. Not low enough for most flats though. I wear a women’s size 9.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2025
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Elliz
Port Orchard, US
★★★★★ 5
So good - I’m buying MORE.
Number of Items: 3, Color: White (3-pairs), Size: Medium
I’m gonna give you more detail than you need about why I’m buying these socks again. I’ve been the mom of girl athletes. I’ve been a model and a fashion director. I’ve worn every brand of shoe on the planet and never found a shoe that did NOT find a vulnerable spot on my foot to rub raw. Even my beloved white Jack Purcell sneakers. With that said - I don’t like socks. I’ve bought a TON of them in 35+ years.....all major brands. They shift. They lose their shape. They get holes in them and wear out too fast. Not these. I retired this year, and knowing I’d be in sneakers a lot, traveling, sightseeing ...... I bought these 6 months ago and have worn them constantly. I’ve traveled with them. I’ve washed them in hot water and bleach. The socks are like brand new. They are exactly the right cut so as not to be seen in a basic sneaker. The little silicone patch on the heel stays put. Not once have I had to dig down into my shoe and pull the sock back up. The socks have stayed soft and EXACTLY the same as the day they were new. Like I said - I am back to buy them again. Great quality!
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Reviewed in the United States on January 20, 2021
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Judy Fletcher
Chelsea, US
★★★★★ 5
No slip low socks
Number of Items: 3, Color: Black/White (3-pairs), Size: Medium
Perfect! ❤️ these!
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Reviewed in the United States on February 16, 2026
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Susan
Chelsea, US
★★★★★ 4
Stay put!
Number of Items: 3, Color: White/Neutral (3-pairs), Size: Medium
Nice and thin, soft, and stay put. I wear an 8 shoe and don’t like a thick sock taking up room. These socks are a bit tight on big toe. Wish they came in large.
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Reviewed in the United States on October 10, 2023

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