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King RS4520-BP5P 4.5" Pure Race Series 5-Tube Bypass Shock with Piggyback Reservoir 20" Travel

Manufacturer

Picture for manufacturer King

Part Number

RS4520-BP5P
9 reviews
Sale Price

$2,868.70

Estimated ship date Saturday, November 14

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No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The King RS4520-BP5P is a premium 4.5-inch diameter Pure Race Series bypass shock absorber engineered for extreme off-road racing applications. Featuring 20 inches of travel and a 5-tube bypass design with an integrated piggyback reservoir, this shock delivers unparalleled performance and adjustability for professional race teams and serious enthusiasts.

Advanced Bypass Technology:

  • 5-tube bypass design with position-sensitive valving for independent tuning of each stage
  • Compression and rebound bypass tubes operate independently with no cross-influence
  • 14 turns of precise adjustment on each bypass valve for exceptional tunability
  • Heat-treated stainless steel bypass valves and springs for fade-free performance
  • Large 1-inch diameter bypass tubes maximize flow while maintaining compact profile

Premium Construction Features:

  • 1.25-inch diameter shock shaft induction hardened to 60-65 Rockwell scale
  • Hard chrome plated and micro-polished to 3 RMS mirror finish for rock bruising resistance
  • CNC-drilled bypass ports, hand-deburred and polished before aircraft-quality TIG welding
  • Precision bored and honed shock tubes to +/- 0.001" tolerance for optimal sealing
  • Cold-drawn 2024 billet aluminum piston with optimized fluid dynamics port design
  • Teflon bronze wear band and Viton o-ring seals for high-temperature durability
  • Replaceable Teflon-lined steel spherical bearings at both mounting points

Reservoir and Assembly:

  • Integrated piggyback reservoir with threaded end caps for high-pressure capability
  • Lightweight aluminum reservoir construction for superior heat dissipation
  • Pressure tested to 300 PSI before plating
  • Heat-treated stainless alloy valve shims resist fatigue and maintain consistent damping

Each King Pure Race bypass shock is custom-built to order, allowing you to specify bypass tube quantity and location for your specific application. This shock represents the pinnacle of off-road suspension technology, tested and proven in the most demanding race conditions worldwide.

Smooth experience

So far so good

fast

best price i found

I'm truly satisfied with the overall business transaction. It arrived super fast and the price was awesome as well. Thanks for the pleasant experience!

Placing my order was simple

Received the item as expected, have not replaced the part yet though looks accurate. There was alot of padding in the packaging.

Good

Helmet is as described and fits fine, however, it's so huge I cannot use it in the car as intended. Some reviews call it "Marvin the Martian" looking. This is generous. It's more like Marvin the Martian on steroids. Will need to return and look locally for a helmet.

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