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THE DOWNHILL RACER’S EDGE

Target locked on the top step of the podium, developed in the crucible of World Cup competition, the 40 is the definitive DH race fork. A Grip2 damper with VVC, and an updated EVOL air spring, along with a host of other radical performance driven features, ensure that the 40 stays in the hot seat.

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40 Orange
40 Orange
40 Black

THE DOWNHILL RACER’S EDGE

Target locked on the top step of the podium, developed in the crucible of World Cup competition, the 40 is the definitive DH race fork. A Grip2 damper with VVC, and an updated EVOL air spring, along with a host of other radical performance driven features, ensure that the 40 stays in the hot seat.

SHOP NOW

SMOOTHER
STIFFER
MORE GRIP

MORE GRIP

GRIP X2

GRIP X2

GRIP X2 is the most tunable, supportive and smoothest descent-focused damper ever created by FOX. Riders reap the benefits of sitting higher in the travel while tires stay glued to the ground, cornering with increased traction. It gives you the confidence to push the limits of downhill and enduro racing, all while reducing overall rider fatigue. GRIP X2 is the winning difference. Learn more about the new GRIP family »

GRIP X2

SMOOTHER

Lower Leg Channels

LOWER LEG BLEEDERS AND BYPASS CHANNELS

Bleeders allow atmospheric pressure equalization at the push of a button. Lower leg bypass channels increase volume to alleviate pressure ramping as the fork moves through its travel. Both result in better fork performance by increasing small bump sensitivity and responsiveness.

STIFFER

Lower Leg Arch

LOWER LEG ARCH

The lower leg design of the 40 while maximizes strength and steering stiffness for downhill performance while adding no unnecessary weight.

Lower Leg Arch

SMOOTHER

36 & 38 Floating Axle

FLOATING AXLE

The 40’s floating thru axle allows perfect chassis alignment and reduces unwanted friction between the upper and lower fork legs, providing much smoother suspension movement throughout the entire range of travel.

“Factory” says it all – feature-packed and designed to exceed the demands of our Factory-level riders. What we sell is what they race. Factory Series products feature slippery smooth, ultra-durable Genuine Kashima Coat.

Damper: GRIP2 (Max adjustment and performance)

Damper:

GRIP2
(Max adjustment and performance)

SHINY ORANGE

40 Factory GRIP X2 Orange Front
40 Factory GRIP X2 Orange 3/4
40 Factory GRIP X2 Orange side
40 Factory GRIP X2 40 Factory GRIP X2 40 Factory GRIP X2 40 Factory GRIP X2
Wheel Size 29
Travel 203
Rake 52
Axle 20 Thru-Axle x 110 Boost
40 Factory GRIP X2
40 Factory GRIP X2
40 Factory GRIP X2

SHINY BLACK

40 Factory GRIP X2 Black Front
40 Factory GRIP X2 Black 3/4
40 Factory GRIP X2 Black side
40 Factory GRIP X2 40 Factory GRIP X2 40 Factory GRIP X2 40 Factory GRIP X2
Wheel Size 27.5 / 29
Travel 203
Rake 48 (27.5) / 52 (29)
Axle 20 Thru-Axle x 110 Boost
40 Factory GRIP X2
40 Factory GRIP X2
40 Factory GRIP X2
SHINY ORANGE SHINY BLACK
Wheel Size 29 27.5 / 29
Travel 203 203
Rake 52 48 (27.5) / 52 (29)
Axle 20 Thru-Axle x 110 Boost 20 Thru-Axle x 110 Boost
All 40 Factory GRIP X2 Forks
Upper Tube Finish Kashima Coat
Air Channels Yes
Bleeders Yes
Floating Axle Yes
Rotor Size 203 direct Post Mount, Up to 230 compatible
Mud Guard Mount Optional FOX 40 Mud Guard with sturdy 4-point direct-mount attachment
Air Spring FLOAT EVOL
Steerer 1.125 Straight
Starting Weight 2745g (40, 29, F-S, 200, Grip X2, 20TA)*

FOX bicycle suspension products are designed only for bicycle applications as recommended by FOX. DO NOT use the FOX 40 fork on any throttle-equipped motorized vehicle. Misuse or incorrect application of FOX suspension products may void the warranty and further may result in suspension failure, which could result in property damage, SERIOUS BODILY INJURY OR DEATH.

Use the FORK BUILDER below to see model configurations.

40 Factory GRIP2

GRIP X2

GRIP X2 is the most tunable, supportive and smoothest descent-focused damper ever created by FOX. Riders reap the benefits of sitting higher in the travel while tires stay glued to the ground, cornering with increased traction. It gives you the confidence to push the limits of downhill and enduro racing, all while reducing overall rider fatigue.

ADJUSTMENTS
High-speed compression 8 clicks
Low-speed compression 18 clicks
High-speed rebound 8 clicks
Low-speed rebound 16 clicks
40 Factory GRIP2
40 Factory GRIP2
40 Factory GRIP2

FORK BUILDER

Choose from 3 models:
Check any box to start exploring available configurations:
Reset all filtersSelectedSelectedSelectedAuto-selected based on your input
 
Part Number is XXX-XX-XXX (check any box to continue)
32
34
36
40
Step-Cast
Taper-Cast
Standard
E-Bike
Series Factory
Wheel Size 27.5in 29in
Travel 203
Axle Style 20TA
Axle Width 110
Damper GRIP X2
Adjustments HSC/LSC HSR/LSR
Air Spring FLOAT
Upper Tube Finish Kashima
Steerer 1.125
Color Shiny Black Shiny Orange
Rake 48mm 52mm

All 40 forks have adjustable air spring pressure and rebound adjust.

COMPATIBLE MUD GUARDS

CLEAN LINES
FOR CLEANING LINES

40 mudguard mounted

40 MUD GUARD

Keep the mud off your fork and out of your eyes with this optional add-on Mud Guard designed specifically for 2021 and newer FOX 40 fork models. Mounts directly to the fork thanks to a proprietary 4-point direct mount system.

BUY 40 MUD GUARD
36/38 small mudguard top
Aaron Gwin riding the 40
40 tuning guide

2025 40 OWNER'S GUIDE

Learn how to quickly set sag, air spring pressure, compression adjustments, rebound adjust, additional tuning options and more.

The recommended settings in this tuning guide are designed to be a starting point, in order to get you out on your first ride in as few steps as possible.

DOWNLOAD NOW

COMPLETE 2025 ONLINE OWNER'S MANUAL

40 FORKS »

 

SERVICE INTERVALS »

To best maintain the performance and durability of your product under normal use, FOX recommends that you have regular fork and shock maintenance performed according to the service intervals.

WARRANTY »

 
HOW TO BUY

DIRECT TO RIDER - UNITED STATES, CANADA, GERMANY & AUSTRIA

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