SKU: 29739103436

HC4-HDR4 - HD/Race Rigid 4 Pad

Sale price$200.25 Regular price$222.50
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Ships within 48 hours · Estimated delivery Jul 17 - Jul 22

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Description

HC4-HDR4 - HD/Race Rigid 4 PadSpecifications: Item Description: HD Race Rigid 4 Pad Product Weight (lbs.): 9. 7 Torque Capacity (ft lbs.): 300 Torque Capacity Over OE: 96% Disc Material: Ceramic Clutch Disc Diameter (Inches): 8. 3 Clutch Disc Diameter (Millimeters): 212 Input Shaft Diameter (inches): 0. 875 Pressure Plate Type: Heavy Duty Warranty: 12 Months Description: The HC4 HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an

Specifications:

  • Item Description: HD/Race Rigid 4 Pad
  • Product Weight (lbs.): 9.7
  • Torque Capacity (ft/lbs.): 300
  • Torque Capacity Over OE: 96%
  • Disc Material: Ceramic
  • Clutch Disc Diameter (Inches): 8.3
  • Clutch Disc Diameter (Millimeters): 212
  • Input Shaft Diameter (inches): 0.875
  • Pressure Plate Type: Heavy Duty
  • Warranty: 12 Months

Description:

The HC4-HDR4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life. All diaphragms undergo a four-stage, heat-treating process for unparalleled performance. Precision cover stampings on ACT pressure plates provide rigidity and consistency. The kit includes 4-pad rigid race discs made with high-quality ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in 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: Engine
    • Various models of Honda CRX and Civic from 1989 to 1991, including Base, HF, Si, DX, LX, and EX.

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: 29739103436

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4.6 ★★★★★
Based on 11 reviews
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Product Reviews
R
Verified Purchase
RB
Carnegie, US
★★★★★ 5
Great mopping floor looks clean
Size: Mop Cloth-4
Mop heads are doing a great job. Always buy original ones for the clean look of your floor
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 17, 2026
J
Verified Purchase
JohnB in WG
Lexington, US
★★★★★ 5
Get yourself a spare set of mop cloths to keep your Roborock always ready to run
Size: Mop Cloth-5
Does the Roborock do a fantastic job mopping the floor? No, but it does a pretty good job, in fact “good enough.” Even better, the Roborock mops the floor more frequently than I ever did so it stays cleaner, overall. Definitely get a pack of spare mop cloths so you can have a set being washed while another set is available to put on the mop. So far, none of the mop cloths have worn out. Given how long they’re lasting, I’m inclined to say it is a decent value for the price paid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 19, 2025
M
Verified Purchase
Mom of 2
Carnegie, US
★★★★★ 5
Fits Saros 10R perfect
Size: Mop Cloth-4
These are great! Fit perfect and might even be fluffier than originals.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
G
Verified Purchase
GadgetGuy
Pawtucket, US
★★★★★ 5
OEM Roborock Cleaning Pads - Do not buy the knock offs.
Size: Mop Cloth-4
These are Roborock OEM pads for my 10R. I tried many of the cheap knock offs and they were terrible. These work great. Highly recommend.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
P
Verified Purchase
philipzelinger
New York, US
★★★★★ 5
Better than OEM pads.
Size: Mop Cloth-5
Better than OEM pads.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026

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