HS2-HDR4 - HD/Race Rigid 4 Pad
SKU: 92674079524

HS2-HDR4 - HD/Race Rigid 4 Pad

Sale price$363.15 Regular price$403.50
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Description

HS2-HDR4 - HD/Race Rigid 4 PadSpecifications: Item Description: HD Race Rigid 4 Pad Product Weight: 12. 7 lbs. Torque Capacity: 475 ft lbs. Torque Capacity Over OE: 78% Disc Material: Ceramic Clutch Disc Diameter (Inches): 8. 3 inches Clutch Disc Diameter (Millimeters): 212 mm Input Shaft Diameter (inches): 1. 03125 inches Pressure Plate Type: Heavy Duty Warranty: 12 Months Description: The HS2 HDR4 kit by ACT features their renowned Heavy Duty pressure plate coupled with a 4 pad

Specifications:

  • Item Description: HD/Race Rigid 4 Pad
  • Product Weight: 12.7 lbs.
  • Torque Capacity: 475 ft/lbs.
  • Torque Capacity Over OE: 78%
  • Disc Material: Ceramic
  • Clutch Disc Diameter (Inches): 8.3 inches
  • Clutch Disc Diameter (Millimeters): 212 mm
  • Input Shaft Diameter (inches): 1.03125 inches
  • Pressure Plate Type: Heavy Duty
  • Warranty: 12 Months

Description:

The HS2-HDR4 kit by ACT features their renowned Heavy Duty pressure plate coupled with a 4-pad rigid race disc. ACT's Heavy Duty pressure plates utilize an exclusive diaphragm design to heighten clamp load, diminish deflection, and optimize clutch longevity. These pressure plates undergo a meticulous four-stage heat-treating process to ensure unparalleled performance and boast precision cover stampings for enhanced rigidity and consistency. Paired with ACT's 4-pad rigid race discs, which are crafted with premium ceramic friction materials and a heat-treated chrome-moly hub for durability, this kit allows for quicker shifts and smooth operation. Although engagement is harsher with the rigid race disc, shifting is faster, making it ideal for smaller engines.

Description:

  • 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: Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance
  • Recommended Use: Recommended for race use only
  • ACT Difference: 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Vehicle Fitment:

  • Application:
    • 2000-2009 Honda S2000 Base: 2.0 L4 GAS FI 1997cc | DOHC (2000-2003), 2.2 L4 GAS FI 2157cc | DOHC (2004-2009)
    • 2008-2009 Honda S2000 CR: 2.2 L4 GAS FI 2157cc | DOHC

PROP 65 WARNING: This product can expose you to chemicals including carbon black, glass wool fibers, and silica (in clutch discs), chromium, and nickel, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.

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: 92674079524

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4.6 ★★★★★
Based on 1079 reviews
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Product Reviews
J
Verified Purchase
Juli
Charlottesville, US
★★★★★ 5
Great value
Size: Saros 10R/Qrevo CurvX/Edge 2 Accessories
As advertised
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 8, 2026
A
Another Amazon Reviewer
Lowell, US
★★★★★ 3
Convenient Roborock Kit, but Quality Feels Lower than OEM
Size: Saros 10R/Qrevo CurvX/Edge 2 Accessories, Size: Saros 10R/Qrevo CurvX/Edge 2 Accessories
This is a convenient accessory kit for Roborock products, but my experience was mixed overall. I have a QX Revo Pro, not the Ultra, and I realized after the fact that the main brush in this kit is not compatible with my robot vacuum. That was my mistake, but it does limit how useful this particular set is for me. The kit includes a variety of parts, and it is nice to have so many replacements on hand in one package. However, the overall quality feels disappointing compared to my original Roborock accessories. The disposable vacuum bags are noticeably smaller than my OEM bags, which makes me question how often they will need to be changed. The mop pads also seem thinner and less substantial than the originals, and they do not look or feel like the same quality material. Because of these differences, I am concerned about the long term performance and durability of the replacement parts in this kit. While it is convenient and generally compatible with Roborock models, I am not confident that these accessories will hold up or clean as well as the OEM parts I am used to.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
V
VicSlick
West Palm Beach, US
★★★★★ 5
Perfect set of replacement parts! Virtually identical to original OEM parts....!
Size: Saros 10R/Qrevo CurvX/Edge 2 Accessories
These brushes, filters, and replacement bags fit our Saros 20 perfectly! Honestly, can't tell the different at all between these and Roborock's pricier first party brushes and filters. We got our robot just a few weeks ago, and the brushes snagged on something sharp and broke. We just dropped in the replacement brushes and up and running instantly. They clean as well, and maybe even slightly better than the original brushes, which is awesome. The extra vacuum bags are also really sturdy, and seem to be made with really strong woven fibers. Overall, really high quality materials, and build quality seems really solid, would recommend 100% to anyone looking for alternative replacement parts to first party OEM parts!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
C
Verified Purchase
chris65fl
Pawtucket, US
★★★★★ 5
Works Perfectly
Color: 12PCS side brushes for Freo X Ultra/Freo Z Ultra/Freo X Plus
The side brushes work perfectly in my robot vacuum and mop and are a better price than the brand replacements. I'm happy with my purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 19, 2025
D
DF
Chelsea, US
★★★★★ 5
Fit Great, Nice Replacement at a Low Price
Color: 12PCS side brushes for Freo X Ultra/Freo Z Ultra/Freo X Plus
Our Narwal robot vacuum needed some replacement side brushes and these seemed to fit the mark. They went on fine and are working great. 6 pairs for under $20 felt like a good price point.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2024

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