Fox Racing Shox 4.0 Factory Race Series Bypass Piggyback Shocks 981-02-393

Name: Fox Racing Shox 4.0 Factory Race Series Bypass Piggyback Shocks
Brand: Fox Shox
SKU: FRS-981-02-393
Price: 1999.50 USD
Availability: InStock
Rating: 0 (0 reviews)

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Part Number: FRS-981-02-393

$1,999.50

$2,279.95

(Save $280.45)

Fox Racing Shox 4.0 Factory Race Series Bypass Piggyback Shocks

Shocks, 4.0 Factory Race Series Bypass Piggyback Shocks, Custom Ride Height, Adjustable Valving, Gas-charged, Eyelet Mounts, Each
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Fox Racing Shox 4.0 Factory Race Series Bypass Piggyback Shocks 981-02-393

FRS-981-02-393

Not Yet Reviewed

Part Number: FRS-981-02-393

Estimated Ship Date from Nevada: Monday 10/19/2026

$1,999.50

$2,279.95

(Save $280.45)

Overview

Applications

Q&A

Instructions & Calculators

Estimated Ship Date from Nevada: Monday 10/19/2026 Would you rather pick it up?

Overview

Brand:

Fox Shox

Manufacturer's Part Number:

981-02-393

Part Type:

Shocks and Struts

Product Line:

Fox Racing Shox 4.0 Factory Race Series Bypass Piggyback Shocks

Summit Racing Part Number:

FRS-981-02-393

UPC:

714686857499

Ride Height:

Custom

Extended Length (in.):

48.00

Collapsed Length (in.):

30.00

Internal Design:

Monotube

Adjustable Valving:

Yes

Gas Charged:

Yes

Upper Mount:

Eyelet

Lower Mount:

Eyelet

Bushing Material:

Polyurethane

Bushing Color:

Black

Boot Included:

Remanufactured:

Quantity:

Sold individually.

Notes:

4-tube, 1 in.

Fox Racing Shox 4.0 Factory Race Series Bypass Piggyback Shocks

Fox Racing Shox 4.0 Factory Race Series bypass piggyback shocks are designed to withstand incredible punishment and provide consistent performance you can rely on. Racing has always been the cornerstone of Fox product development, and their diverse line of bypass shocks are all made with one goal in mind—to win! Select the extended and collapsed length options you prefer.

Additional product details:

* Smooth bore and honed seamless steel bodies
* Zinc plated for a long-lasting finish
* Black anodized, CNC-machined 6061-T6 billet aluminum components
* Stainless steel piston for improved performance at high temperatures
* Tunable, velocity sensitive deburred valve shims
* High-temperature Viton® redundant sealing pack system with main, wiper, and scraper seals
* JM92 Advanced Suspension Fluid for improved performance at variable temperatures
* 17-4 H900 hard chrome plated stainless steel shafts
* PFTE-lined, heat-treated alloy steel spherical bearing
* Adjustments: Rotating body cap; compression and rebound valving; compression, rebound, and free bleed bypass adjusters
* Available in 4 and 5 tube