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Fox 3.5 Series 5 Tube External Bypass Shock Set

$5,739.90$5,839.90

FOX 3.5 x 16″ or 18″ 5 Tube External Bypass Shock Set

Designed for:

  • RST18 Bypass Rack
  • RST21 Bypass Rack
Clear
Description

3.5 FACTORY RACE SERIES EXTERNAL BYPASS

FOX External Bypass shocks have racked up countless wins across the globe over the past 30 years. There’s no questioning whether they’re race proven, but in the words of Bob Fox, “we’re never done.” In that spirit, we’ve revitalized our tried-and-true externally adjustable position sensitive damping archtecture to deliver all-new standards of performance and durability, all while streamlining the production process.


NEW FEATURES

BODY FINISH Dual coated body with proprietary FOX Grey Cerakote® protective ceramic coating over zinc plated basecoat for improved corrosion resistance and durability
ADJUSTERS All-new Gen 3 clicker adjuster for 1” bypass tubes provides 25% increased adjustment range over previous generation and utilizes less parts for improved durability and serviceability. Black anodized adjuster housings feature color coded seals for compression, rebound, and gold valves.

Revised Gen 2 clicker adjuster for 3/4” bypass tubes with black anodized adjuster housings and color coded seals for compression, rebound, and gold valves.

RESERVOIR CLAMP Black anodized billet aluminum reservoir clamp
BEARING Wire ring bearing design
PART NUMBERS New structure denotes diameter in middle two digits

-L (LEFT), -R (RIGHT) and -C (CUSTOM) variation suffixes

CARRYOVER FEATURES

COMPONENTS Black anodized, CNC machined 6061-T6 billet aluminum
BODY Smooth bore and honed seamless steel
BODY CAP Rotating body cap design allows precise clocking and fitment
SHAFT 17-4 H900 hard chrome plated stainless steel 1″ shaft
VALVING Tunable, velocity sensitive deburred valve shims
SEALS High-temp Viton® redundant sealing pack system with main seal, wiper seal and scraper seal
OIL JM92 Advanced Suspension Fluid for superior race proven performance from 0-400° F
HEIMS PFTE-lined, heat-treated steel spherical bearings
ADJUSTMENTS External Bypass adjusters – Compression, Rebound

Piston Valving – Compression, Rebound

STANDARD CONFIGURATIONS

TRAVEL 12.0″, 14.0″, 16.0″, 18.0″
RESERVOIR Piggyback
TUBE SIZES 3/4″, 1″
BYPASS LAYOUTS 4 Tube (2 compression, 2 rebound), 5 Tube (3 compression, 2 rebound)
PISTON 7075 hard-anodized billet aluminum 9-port high-flow piston
EYELET LENGTH 2.045″
MOUNTING 5/8″ x 1-1/2″

CUSTOM OPTIONS

RESERVOIRS Remote
BYPASS LAYOUTS Custom tube layouts
ECS2 External Cooling System 2 – race proven to reduce fluid temps by up to 150° F
ADJUSTERS Gold Valve (free bleed), QAB (Quick Adjust Bypass)
EYELETS Multiple eyelet mounting lengths
MOUNTING 1-1/2″ mounting width spacers/reducers
PART NUMBERS Replace “-L”or “-R” in standard part numbers with “-C” for custom configurations
Additional Information
Weight 90 lbs
Dimensions 35 × 19 × 10 in
Shock Spec

3.5 x 16" 5 Tube (RST18), 3.5 x 18" 5 Tube (RST21)

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