SKU: 9473811091

ZM12-HDR4 - HD/Race Rigid 4 Pad

Sale price$244.80 Regular price$272.00
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Ships within 48 hours · Estimated delivery Aug 4 - Aug 9

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Description

ZM12-HDR4 - HD/Race Rigid 4 PadProduct Description: HD Race Rigid 4 Pad Clutch Kit The HD Race Rigid 4 Pad Clutch Kit, designated as the ZM12 HDR4, embodies ACT's commitment to high performance clutch solutions. Weighing 25. 4 pounds, this kit delivers a remarkable torque capacity of 399 ft lbs, surpassing OE standards by 87%. Crafted with a ceramic disc material, it features a clutch disc diameter of 8. 8 inches (224mm) and an input shaft diameter of 0. 9375 inches. At its heart

Product Description: HD/Race Rigid 4 Pad Clutch Kit

The HD/Race Rigid 4 Pad Clutch Kit, designated as the ZM12-HDR4, embodies ACT's commitment to high-performance clutch solutions. Weighing 25.4 pounds, this kit delivers a remarkable torque capacity of 399 ft/lbs, surpassing OE standards by 87%. Crafted with a ceramic disc material, it features a clutch disc diameter of 8.8 inches (224mm) and an input shaft diameter of 0.9375 inches.

At its heart lies ACT's renowned Heavy Duty pressure plate, renowned for its exclusive diaphragm design. This design elevates clamp load, diminishes deflection, and maximizes clutch longevity. Each diaphragm undergoes a meticulous four-stage heat-treating process, ensuring unmatched performance. Precision cover stampings provide the necessary rigidity and consistency crucial for enduring performance under the most demanding conditions.

The clutch kit integrates ACT's 4-pad rigid race discs, engineered with premium ceramic friction materials. The chrome-moly hub is heat-treated for enhanced strength and durability. The lightweight, rigid design facilitates quicker shifts and ensures smooth, trouble-free operation. While engagement may be firmer with the 4-pad rigid race disc, shifting becomes noticeably quicker. This configuration is particularly well-suited for smaller disc sizes in smaller engines.

Key Features:

  • Feel: Light to moderate pedal effort, aggressive engagement, increased gear rattle.
  • Life: Moderate friction life, extended by ACT's exclusive diaphragm design; rigid design may increase spline wear.
  • Quality: Meticulously engineered, precisely assembled, accurately balanced, utilizing select ceramic friction materials for high heat tolerance and maximum performance.
  • Recommended Use: Designed for race use only, offering unparalleled performance in high-performance applications.
  • ACT Difference: Rigorously tested, ensuring 100% clamp load and dynamically computer balanced for smooth operation even at high RPMs.

Vehicle Fitment: This clutch kit is compatible with a range of Mazda MX-5 Miata models from 2016 to 2018, including various trim levels equipped with a 2.0 L4 GAS FI 1998cc engine. Compatible models include:

  • 2016-2018: Mazda MX-5 Miata Club, GS, GT, GX, Grand Touring, Sport
  • 2017-2018: Mazda MX-5 Miata RF Club, RF GS, RF GT, RF Grand Touring

Owners of these Mazda MX-5 Miata models seeking uncompromising performance can elevate their driving experience with the HD/Race Rigid 4 Pad Clutch Kit from ACT.

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: 9473811091

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4.2 ★★★★★
Based on 16 reviews
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K
Verified Purchase
koshdeb
Houston, US
★★★★★ 5
You will want to sleep on these sheets!
Color: Adelia Gray, Size: Queen Extra Deep Pocket
Buy these sheets! I have only slept on 100% percale cotton. No blends, no sateen mix, just pure percale cotton which these sheets deliver. The finish is soft, not rough or scratchy as some describe. Cotton, is not rough. Percale, however, may not be. for everyone. They like a like iron to keep them unwrinkled and smooth. Some describe the finish as crisp. Again, crisp, is not scratchy. Crisp is an old-fashioned texture that appeals to any who like to sleep on the cooler side. Not cold, simply cool. Cotton breaths, other fabrics do not. The fabric is light, but **not thin. Again, cotton percale is a lofty drape but with a cotton that breathes nicely. II purchased the extra deep pocket, queen size with an accurate fit. The days of misfitted bottom sheets are gone. These, slide on with ease. They are not oversized or sloppy. The elastic hugs the mattress with comfort. I did not need to struggle or attempt to stretch the fabric to encase my mattress. It was a proper fitting, fitted sheet. The elastic is plenty. The drape of the percale is perfection. The drop on both sides of the bed is again proper. Not overly generous and hanging to low, nor too short that they create a tug-o-war when sleeping to keep covered. They fall to the edge of the mattesss which is what I was wanting. These sheets also launder very nicely in cold water. The colors do not bleed. I dryer my sheets on perm-press despite percale is not that finish. It helps reducing wrinkling. When I hear my dryer chime, I instantly remove the sheets and lightly press them with an iron so the fabric performs as percale should. For those who like a wrinkled sheet that is soft, you will also be pleased. These are wonderful sheets that fulfill their product description, 100%. My only request is for more prints and colors like the rest of the other size mattresses. Queen, extra deep pocket is limited with selection which is unfortunate as more mattresses are made thicker, denser and with a struggle to purchase properly fitting sheets. These sheets are sized correctly to fit 22" and perhaps 23" mattresses. The days of small fitted sheets are past tense. Oh, also the pillowcases are generous. I sleep with regular sized pillows but this company cut the pillowcases to allow for queen or larger pillows so there is again, plenty of room. I am delighted to know this company and hope more prints will become available for extra deep pocket sleepers.
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Reviewed in the United States on April 1, 2026
M
Verified Purchase
Mohit Saxena
Battle Creek, US
★★★★★ 5
Great crisp, cooling, cotton sheets. Not soft like microfiber but theyre amazing for hot sleepers.
Color: Lama Multi, Size: Full
These are awesome. They are the crisp, rougher kind of cotton sheets but cooling. i actually wanted sheets that felt more rough and crisp. These are not uncomfortable at all but rather the opposite. i am a very hot sleeper and i was using microfiber before; these were a game changer, the difference is astounding. never going back to microfiber again. when i shift to turn the other way while i sleep, the sheets feel cool to the touch its actually amazing. also the llamas are very cute. Cotton wrinkles more than other fabrics in case you mind that. but its not noticeable on my pillows and my comforter covers the sheets anyway.
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Reviewed in the United States on May 9, 2026
L
Verified Purchase
L.R.
Carnegie, US
★★★★★ 5
Great summer sheets
Color: Light Blue, Size: Queen, Color: Light Blue, Size: Queen
Love these sheets! I washed them before using. Went by the manufacturer's instructions and they came out beautifully. I purchased these for my summer sheets, and they are very soft and comfortable and really keeps me cool at night. I purchased the light blue, but they are more like aqua green. Not saying I don't like them, the color is very pretty. But if you are looking for light blue, they are not quite that. Are there wrinkles? Yes, of course. They're 100% cotton. Did it interfere with my sleep? Nope. Not at all.
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Reviewed in the United States on May 18, 2026
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Verified Purchase
Victoria
Birmingham, US
★★★★★ 4
100% cotton
Color: Dark Gray, Size: King
I have a king size hybrid Purple mattress, and while the fitted sheet pockets don’t exactly fit all the way to the bottom, they didn’t really have issues with riding up much. I just pull them back down when making the bed, and it’s not really an issue. They are a little crunchy at first, but I think they soften with washes. I appreciate that they are 100 percent cotton which was my reason for purchasing. For the price, I am satisfied, and will probably purchase more if I can’t find anything comparable with deeper pockets. I would consider them to be a good mid weight, breathable sheet set, making them nice year round sheets. I haven’t had any pilling issues yet, I will continue to use to be sure this doesn’t become a problem before I purchase another set. The gray color is very pretty and neutral, making it match with many other color schemes. As of now, if the pockets were just a little deeper, I’d give 5 stars.
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Reviewed in the United States on January 2, 2026
K
Verified Purchase
Kai
Charlottesville, US
★★★★★ 5
Great Buy
Color: Sage Green, Size: California King
Pros: correct color as shown, lightweight, breathable at night, great for sensitive skin, fits corners of bed Cons: after 2-3 washes, even following wash instructions the sheet does get smaller making it harder to fit bed. Overall 10/10, would recommend buying & I will buy in future.
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Reviewed in the United States on June 2, 2026

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