Fox 36 Factory Grip X2: Trail-ready fork with enduro-level control

Responsible: ad hoc news Software & Services Desk. Reviewed prior to publication on June 11, 2026 at 8:08:29 PM ET. Details in the imprint.

The Fox 36 Factory Grip X2 fork is one of Fox Factory Holding Corp.'s most capable trail and enduro suspension products for riders who want a mid-travel fork with near-downhill levels of control on rough terrain. With up to 160 mm of travel in 29-inch configuration, a stiffer chassis than the lighter Fox 34, and the highly tunable Grip X2 damper, the 36 Factory sits at the performance-focused end of the brand's mountain bike lineup for aggressive trail and all-mountain use.

Positioning the Fox 36 Factory Grip X2 in Fox's fork lineup

Fox Factory differentiates its mountain bike fork range primarily by chassis size, intended use and damper technology, and the 36 platform is aimed at aggressive trail and enduro riders who demand more stiffness and travel than a pure cross-country or light trail fork can provide. While the Fox 32 is optimized for cross-country racing and the Fox 34 targets downcountry and lighter trail duty, the 36 moves into the all-mountain tier, with stanchions measuring 36 mm in diameter and travel options typically ranging from 140 mm to 160 mm for 29-inch wheels. Above the 36 sit the 38 and 40 chassis, designed for long-travel enduro and full downhill racing respectively, but these heavier options are often overkill for riders who want a versatile bike that can still pedal efficiently on long climbs while remaining capable on black-diamond descents.

Within the 36 line itself, Fox uses its familiar performance tiers: Rhythm, Performance, Performance Elite and Factory, each combining chassis features with different damper and coating options. The Factory designation represents Fox's top specification for consumer forks, sharing many technologies with its racing products and distinguished by the brand's signature Kashima-coated upper tubes. Kashima coating is a hard anodizing process designed to reduce friction and increase durability, and it is visually recognizable by its gold color on Fox Factory forks. In the 36 Factory Grip X2 variant, this premium chassis is paired with the Grip X2 damper, a high-end cartridge-based system offering extensive adjustment over both high-speed and low-speed compression and rebound circuits.

The Grip X2 damper sits above Fox's simpler Grip and Fit4 damper architectures in terms of tuning range. Grip, used in many Performance-level forks, provides a good balance of simplicity and performance, while Fit4 offers three main on-the-fly modes (open, medium, firm) focused on climbing and general trail riding flexibility. Grip X2, by contrast, is an open-bath-style damper with a focus on downhill sensitivity and traction, allowing fine-grained adjustment to achieve coil-like small-bump compliance with air-spring weight savings. For riders who enjoy experimenting with settings to dial in feel for specific trails, this level of adjustment is a key differentiator over lower-tier Fox 36 variants.

On the air-spring side, the 36 Factory Grip X2 uses Fox's EVOL (Extra Volume) air spring, which adds a larger negative spring volume to increase small-bump sensitivity and linearize the initial stroke. Riders can fine-tune spring progressiveness using volume spacers (often called tokens), adding or removing these plastic spacers inside the air chamber to adjust how ramp-up feels toward the end of the travel. For heavier or more aggressive riders who frequently encounter big hits or bike-park features, running more volume spacers helps prevent harsh bottom-outs; lighter or smoother riders often prefer fewer spacers so they can access more of the available travel on typical rides.

Chassis improvements over earlier Fox 36 generations include an updated arch and lower-leg design that increase torsional stiffness while preserving clearance for modern frames and large-volume tires. Fox has also incorporated its lower-leg bypass channels, which are small relief pathways designed to reduce pressure build-up and improve lubrication of the bushings as the fork compresses, resulting in smoother performance over long descents. Bleed valves on the back of the lower legs allow riders to equalize pressure that can build up inside the fork due to large elevation changes or temperature swings, a feature borrowed from downhill racing forks and seen increasingly in high-end enduro models.

In the US market, the Fox 36 Factory Grip X2 is commonly offered in travel options around 150 mm to 160 mm for 29-inch wheels and 140 mm to 160 mm for 27.5-inch wheels, targeting modern trail and all-mountain bikes with head angles around 64 to 65 degrees and reach numbers suitable for technical descents. Many US bike brands pair the 36 Factory with 140 mm to 160 mm rear-travel frames, creating well-balanced builds for riders who frequent trail centers, enduro races, and lift-served bike parks on weekends, while still pedaling regular local loops.

Feature set: damping adjustments, weight, and compatibility

The key feature that defines the Fox 36 Factory Grip X2 relative to other Fox forks is the richness of its damping adjustments. The Grip X2 damper offers four primary external adjustments: high-speed compression, low-speed compression, high-speed rebound and low-speed rebound. High-speed compression refers to the fork's resistance to fast shaft movements, such as square-edged bumps, landings and big hits, while low-speed compression affects how the fork reacts to rider inputs like braking, cornering and weight shifts. High-speed rebound controls how quickly the fork extends after absorbing rapid hits, and low-speed rebound targets more gradual extension after slower compressions, such as those induced by body movements in berms or rollers.

Each adjustment is typically controlled by a dial on the top or bottom of the fork leg with a defined number of clicks, allowing riders to count back from a recommended baseline setting published by Fox for their weight and riding style. For example, Fox's online tuning guides provide suggested air pressure, rebound and compression clicks for a given rider weight and bike setup, giving a solid starting point that can be refined on trail. Many experienced US riders keep a small notebook or smartphone notes file with their preferred settings for different conditions, such as “rocky desert” versus “wet roots,” and the Grip X2 damper offers the granularity to make meaningful changes between those presets.

Though exact weight varies by travel, wheel size and steerer configuration, the Fox 36 Factory Grip X2 in 29-inch, 160 mm travel, with a cut steerer tube typically falls around the mid-2 kg range, roughly comparable to other premium mid-travel forks. This places it heavier than the Fox 34 Factory but lighter than the burliest Fox 38 chassis, reinforcing its position as a versatile compromise between efficiency and downhill stability. Riders building aggressive all-mountain bikes that also see big days of pedaling often choose the 36 Factory to avoid the additional weight penalty of the 38 while still enjoying a notably stiffer and more controlled front end compared to a 34 on rough descents.

In terms of compatibility, the Fox 36 Factory Grip X2 is available in Boost hub spacing (110 mm axle width) and uses a 15 mm thru-axle system, in line with modern trail and enduro standards. The fork typically ships with Fox's Kabolt-X or QR-style thru-axle, depending on the exact SKU, and supports wide rims and tires commonly used in aggressive riding, often in the 2.4 to 2.6 inch range. The crown is built for tapered steerers (1 1/8 inch to 1.5 inch), matching the majority of contemporary mountain bike frames sold in the US market. Brake mounting uses a post-mount design sized for large brake rotors, frequently 180 mm or 203 mm, which are standard among riders who descend long, steep trails and need sustained braking power.

For riders concerned with service and support, Fox publishes detailed service intervals and maintenance documentation for the 36 platform, including recommended lower-leg services and full damper rebuild intervals based on riding hours. Many US bike shops are certified Fox service centers or routinely handle Fox fork maintenance, and Fox also runs its own service operations where users can send in their forks for professional overhauls. This infrastructure matters for a high-end product like the 36 Factory Grip X2, where maintaining performance through regular service is a key part of the ownership experience.

US availability for the Fox 36 Factory Grip X2 is widespread, with forks sold both as aftermarket upgrades and as original equipment on complete bikes from major brands. Aftermarket customers can purchase the fork through local bike shops, large online retailers and specialty suspension dealers, while riders who prefer complete bikes will find the 36 Factory spec on high-end trail and enduro builds from several North American and global manufacturers. Typical US retail pricing for the Fox 36 Factory range, depending on configuration, often lands in the upper hundreds of dollars, reflecting its position as a premium product, although exact MSRP can vary by model year and specific SKU.

Fox provides product details, specifications and tuning resources for the 36 Factory series on its official website, helping riders compare configurations and understand the differences between Grip, Fit4 and Grip X2 damper options before purchasing. The company's online tech resources also cover sag setup, air pressure charts and troubleshooting tips, which can be particularly helpful for riders new to more complex damper systems. Many US mountain bike media outlets and reviewers have put the 36 Factory Grip X2 through long-term testing on varied terrain, highlighting its combination of small-bump sensitivity, mid-stroke support and big-hit control as defining characteristics for aggressive trail and enduro use.

For Fox Factory Holding Corp., the 36 Factory Grip X2 represents a core part of its performance mountain bike suspension portfolio, positioned between lighter trail forks and full-on downhill race products and appealing to a sizable segment of US riders who want one bike that can climb efficiently and handle demanding descents. Shares of Fox Factory Holding Corp. (US35138V1026, ticker FOXF) traded at $61.77 on Nasdaq on June 11, 2026.

This article was created with a.i. assistance and editorially reviewed. Product information is provided without warranty; prices and availability may change at any time. Not investment advice, not a buy or sell recommendation. Trading in securities carries risks up to the total loss of capital.