SKU: 61607969921

Supertech Spring / Retainer / Dual Valve Spring Kit (SPRK-H1021D) - Honda S2000 00-03

Sale price$254.84 Regular price$283.16
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Ships within 48 hours · Estimated delivery Jul 23 - Jul 28

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Description

Supertech Spring / Retainer / Dual Valve Spring Kit (SPRK-H1021D) - Honda S2000 00-03Supertech Spring Retainer Dual Valve Spring Kit (SPRK H1021D) Honda S2000 00 03 Springs Specifications: Outer Spring: O. D. (30mm) I. D. (21. 8mm) Inner Spring: O. D. (21. 3mm) I. D. (15. 5mm) Pressure: Seat 95@40. 40 Open 253@12 Max Lift: 17. 7mm Coil Bind: 22. 70mm Rate: 13. 20mm (lbs mm) Engine Valve Technology Supertech applies more than 30 years of experience in the development of each and every Supertech racing valve sold. Combine this

Supertech Spring / Retainer / Dual Valve Spring Kit (SPRK-H1021D) - Honda S2000 00-03

Springs Specifications:

  • Outer Spring: O.D. (30mm) / I.D. (21.8mm)
  • Inner Spring: O.D. (21.3mm) / I.D. (15.5mm)
  • Pressure: Seat [email protected] / Open 253@12
  • Max Lift: 17.7mm
  • Coil Bind: 22.70mm
  • Rate: 13.20mm (lbs/mm)

Engine Valve Technology

Supertech applies more than 30 years of experience in the development of each and every Supertech racing valve sold. Combine this experience with state of the art equipment such as ultrasonic tests, x-rays, laser measurement equipment, and applications like computerized Finite Element Analysis (FEA) and it is no wonder why Supertech has some of the best performance products on the market.

Supertech also does extensive testing working very closely with many of today's top engine builders in order to continuously improve products. All of this is meant to insure Supertech's industry leading reputation for high flow rates, durability and uncompromising quality.

Higher Flow Rates

Supertech valves are not finished from generic blanks rather they are specifically designed for each and every application. Supertech works relentlessly, testing and researching every aspect trying to improve the air flow of their designs.

Durability

With every valve design, Supertech strives to maximize durability through higher fatigue resistance and tensile strength. Each valve tip is hardened beyond 52HRc.

Stem Super finishing

In 2006, Supertech introduced the stem Superfinishing as a standard addition to all valves and provided it at no additional cost. When Superfinish is combined with our Black Nitrided valve it reduces the surface roughness to 1/3 of a chrome coated valve. The end result... unsurpassed performance and durability.

Strict Dimensional Tolerances

It's unlikely you will find any of competitor valves with stricter dimensional tolerances than Supertech valves. Combine that with finished seats with equally strict run out tolerances and you won’t find a better sealing, better performing and easier to install solution anywhere!

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: 61607969921

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JJ Fording
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★★★★★ 5
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My dog loves chasing these balls. He seems to love the squeak! They fit the chuck it stick perfectly, and are great replacements for the originals that came with the stick.
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Reviewed in the United States on February 7, 2026
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Steve just Steve
Louisville, US
★★★★★ 5
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Size: Medium
The squeaker quickly became my dog’s favorite ball and has replaced the fuzzy tennis balls. My dog is a nonstop fetcher and these chuck it balls are durable and fun.
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Reviewed in the United States on January 9, 2026
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Claudia Garfield
Bozeman, US
★★★★★ 5
Perfect ball
Size: Medium
Our dog loves these!
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Reviewed in the United States on May 26, 2026
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Timothy john starkweather
Draper, US
★★★★★ 4
Soild
Size: Medium
The orange and blue ball is perfect. Once start taken because the because the blue noisy one was a little to easy for my dog to start ripping pieces off. Will say most toys do not survive his chewing.
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Reviewed in the United States on January 24, 2026
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Christy D.
Charlottesville, US
★★★★★ 5
Aggressive chewer who loves fetch approved!!
Size: Medium, Size: Medium
I highly recommend the Chuck-It brand in general, especially for dogs with an aggressive bite. These balls are awesome and are the most durable balls I’ve bought for my 50 lbs lab mix. He has not been able to break one of them yet and we’ve had a few of the squeaky balls for months. They are a bit pricey but worth it. The one in the pic has been used for months, lives outside and you can see it’s still in great shape.
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Reviewed in the United States on June 22, 2025

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