FOX Internal Bypass Explained

Inside the Internal Bypass Shocks

FOX patented Internal Bypass technology offers position-sensitive damping that is designed to adapt to any terrain, on and off the road.

FOX Internal Bypass Explained

FOX Internal Bypass Shocks utilize the same race-proven, position-sensitive damping technology as FOX’s External Bypass Shocks, but in a compact package available in a wide range of sizes and developed for specific applications.

FOX Internal Bypass Explained

FOX Internal Bypass Explained

FOX Internal Bypass Explained


Body: Smooth bore and honed seamless steel

Body Plating: Zinc-plated for a long-lasting finish

Components: Black-anodized, CNC-machined 6061-T6 billet aluminum

Piston: 7075 hard-anodized high-flow aluminum piston

Valving: Tunable, velocity-sensitive deburred valve shims

Hose: Reusable ORB O-ring port-hose fittings for superior seal with remote reservoirs

Seals: High-temp Viton redundant sealing pack system with main seal, wiper seal and scraper seal

Oil: JM92 Advanced Suspension Fluid for improved performance at variable temperatures

Shafts: 7/8″ 17-4 H900 hard chrome-plated stainless-steel

Bearing: Spherical, PFTE-lined, heat-treated alloy steel

FOX Internal Bypass Explained

Watch the video to see how the Internal Bypass technology works:

FOX Internal Bypass Explained

FOX Shocks and the Can-Am Maverick X3

FOX Internal Bypass Explained

FOX Internal Bypass Explained

Here’s another video explaining what the setup is on the Can-Am Maverick X3 UTVs and also how to set it up.

Can-Am Maverick X3 Race Tune FOX Suspension Set Up


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Scotts Valley, CA 95066


For more than three decades, FOX has been an industry leader in the design and development of high-performance shock absorbers and racing-suspension products for snowmobiles, mountain bikes, motorcycles, ATVs, UTVs, off-road cars, trucks and SUVs. In 1974, Bob Fox started racing his products in motocross and FOX hasn't stopped racing since. FOX-equipped vehicles and racers have stood atop podiums in every sport they have competed in — from the sands of Baja to the dunes of Dakar.