Designed from the ground up, this race ready XC fork is part of Fox Suspension's Performance Series with an anodised finish on its upper tubes for extra durability as well as protection against corrosion in wet conditions. It's also equipped with a chassis that's 15% stiffer than the 32 standard model and features a revised arch shape that offers improved head tube clearance with shorter rakes. All set for cross country racing, its lightweight Float EVOL air spring and GRIP damper provide excellent tuneability and control, so you can tweak your suspension to match your riding style as well as the terrain. Fox Suspension has classed this model as its lightest 34 ever. The 34 Step-Cast is designed from the ground up to deliver uncompromised XC race performance with class-leading tuneability, chassis stiffness and strength. Float EVOL Air Spring Returning with the same legendary suppleness and longevity, the EVOL air spring in 34’s now has an enlarged negative air spring to assist with mid-stroke support. It also now also comes with the option to tune the negative air spring with a volume spacer. FIT GRIP Damper Inspired from moto, the GRIP damper uses Fox Suspension's FIT sealed cartridge technology combined with a coil-sprung, independent floating piston. GRIP allows excess oil to purge through specially designed ports at the top of the damper to maintain consistent damping and increase durability. Technologies: Performance Series: Performance Series forks retain the same black anodized 7000 series aluminium upper tubes as Performance Elite, except paired with a GRIP damper. Adjustments: Three on-the-fly compression damping positions Open, Medium, Firm. Additional micro-adjust between settings Detents. Low-speed rebound 10 clicks. Lower Leg Bypass Channels: As a fork compresses, the air volume within the lower legs decreases, increasing air pressure. The more the fork compresses, the more pressure increases. This effect can have the unintended consequence of preventing full travel from being achieved. Fox Suspension's lower leg channels help alleviate this issue by dramatically increasing air volume within the lower legs and thereby reducing the amount of additional unintended pressure ramping. Another benefit of these channels is that lower leg bath oil is circulated to the upper reaches of the lower legs, continuously lubricating the foam rings and bushings as the fork compresses and extends through its travel. Lower Leg Arch: Stiffness-to-weight is the ultimate metric for bicycle design. Engineers invest countless hours poring over every ounce of material in an effort to optimize this critical ratio. The all-new 34 pulls out all the stops, shaving every possible gram while making sure not to compromise the stiffness or strength requirements of modern trail riding. Modern frame designs and geometry trends require modern suspension design solutions. The arch design is designed to pair perfectly with modern trail bikes. Head tube profiles have grown larger and larger, and fork offsets shorter and shorter. Fox Suspension's new arch shape takes this need into account by jutting forward to provide ample headtube clearance at full compression. State-of-the-art computer modeling techniques helped us to create an organic lower leg shape that optimizes stiffness with the absolute minimal amount of material. Updated Crown: Updated 58mm diameter crown. Manufacturer's Part Number: 910-21-015 Black 29" QR110 120mm 44mm
The hard charging do it all trail fork. Smoother, lighter, more tunable, and more capable than ever before; when it comes to a do-it-all trail fork the 34 is in a class of its own. FEATURES ALL-NEW chassis. ,NEW air / oil channels. ,NEW arch shape offers improved head tube clearance with shorter rakes. ,NEW 58mm diameter crown. ,Updated EVOL air spring. .SPECIFICATION Wheel Size: 29". ,Colour: Matte Black. ,Travel: 140mm. ,Offset: 44mm. ,Available Dampers: GRIP 3Pos. ,Axle to Crown: 554mm (140mm Travel). ,Max Tyre Size: 29 x 2.60". ,Rotor Size: 180-230mm. ,Steertube: 1.5 Taper. ,Axle Options: 15 x 110 QR. ,Uppertube Finish: Black Anodised. ,Starting Weight: 1800g..
Welcome to the coronation. Fox 36; The undisputed all-mountain champion gets a new crown. For 2023 the 36 receives an update in the form of a new crown with updated design and engineering for more steer tube overlap improving durability and maintaining stiffness while dropping 20 grams.New Crown - Lighter by 20 grams, while increasing steerer-tube overlap at the CSU, the new crown design improves durability while our engineering maintains stiffness and drops weight.Axle - Kabolt, a lightweight bolt-on floating axle to shave grams and increase torsional stiffness via a sleeveless, single-sided pinch bolt design.Lower Leg Bypass Channels - Increasing air volume within the lower legs reduces the amount of additional unintended pressure ramping. Lower leg bath oil also circulates to the upper reaches of the legs, continuously lubricating the foam rings and bushings as the fork compresses and extends through its travel.Lower Leg Bleeders - Allows for atmospheric pressure equalization for better fork performance, allowing full travel to be achieved and increasing small bump sensitivity and responsiveness.Lower Leg Arch - Our new lower leg design pulls out all the stops, shaving every possible gram while making sure not to compromise stiffness or strength requirements of modern Enduro and gravity-style riding.Float EVOL - Optimises small bump sensitivity by increasing negative air spring volume. Its linear spring curve delivers plushness off the top, extra mid-stroke support, and more tuneable bottom-out progression.Specification:Damper: GRIPTravel: 160mmOffset: 44mm & 51mmWheel Size: 29"Axle: 15QR x 110mm BoostSteerer: 1.5 TaperedColour: Matte BlackUpper leg finish: Black Anodised
Welcome to the coronation. Fox 36; The undisputed all-mountain champion gets a new crown. For 2023 the 36 receives an update in the form of a new crown with updated design and engineering for more steer tube overlap improving durability and maintaining stiffness while dropping 20 grams.New Crown - Lighter by 20 grams, while increasing steerer-tube overlap at the CSU, the new crown design improves durability while our engineering maintains stiffness and drops weight.Axle - Kabolt, a lightweight bolt-on floating axle to shave grams and increase torsional stiffness via a sleeveless, single-sided pinch bolt design.Lower Leg Bypass Channels - Increasing air volume within the lower legs reduces the amount of additional unintended pressure ramping. Lower leg bath oil also circulates to the upper reaches of the legs, continuously lubricating the foam rings and bushings as the fork compresses and extends through its travel.Lower Leg Bleeders - Allows for atmospheric pressure equalization for better fork performance, allowing full travel to be achieved and increasing small bump sensitivity and responsiveness.Lower Leg Arch - Our new lower leg design pulls out all the stops, shaving every possible gram while making sure not to compromise stiffness or strength requirements of modern Enduro and gravity-style riding.Float EVOL - Optimises small bump sensitivity by increasing negative air spring volume. Its linear spring curve delivers plushness off the top, extra mid-stroke support, and more tuneable bottom-out progression.Specification:Damper: GRIPTravel: 160mmOffset: 44mm & 51mmWheel Size: 29"Axle: 15QR x 110mm BoostSteerer: 1.5 TaperedColour: Matte BlackUpper leg finish: Black Anodised
The Fox 34 Performance Elite is a hard charging do it all trail fork. Smoother, lighter, more tuneable, and more capable than ever before; when it comes to a do-it-all trail fork the 34 is in a class of its own.All-New chassisNew air / oil channelsNew arch shape offers improved head tube clearance with shorter rakesNew 58mm diameter crownUpdated EVOL air springSpecification:Wheel Size: 29"Colour: Matte BlackTravel: 130mmOffset: 44mmAvailable Dampers: FIT4 3Pos-AdjustAxle to Crown: 554mm (140mm Travel)Max Tyre Size: 29 x 2.60"Rotor Size: 180-230mmSteer tube: 1.5 TaperAxle Options: 15 x 110 QRUpper tube Finish: Black AnodisedStarting Weight: 1738g
This high-quality mountain bike (MTB) suspension fork is part of the prestigious Factory Series, which means it comes trail-ready with anodised upper tubes for hard-wearing performance and durability wherever your next ride takes you. Engineered for everything from day long epics on your favourite trails to modern enduro racing, it's kitted out with Boost axle spacing for extra stiffness as you dominate your way around the mountain. Another highlight is its lightweight Float EVOL air spring and GRIP2 damper with Variable Valve Control (VVC) for undisputed tuneability and control. As a result, it's easy to dial in your settings to match your riding style as well as the terrain. Coming complete with 160mm travel as well as many of the brand's finest technologies, this is a great choice of upgrade for conquering everywhere from big backcountry routes to the EWS circuit. MTB Fork with GRIP2 Damper Fox Suspension's GRIP2 damper is the benchmark for unparalleled ride quality and ultra-precise adjustability. GRIP2 includes the brand's patented Variable Valve Control (VVC) technology which allows for external fine-tuning of suspension performance. GRIP2 achieves with the twist of a knob what typically requires the time-consuming and complicated task of completely disassembling and reassembling the fork. Float EVOL Air Spring EVOL technology increases negative air spring volume, optimising small bump sensitivity. EVOL’s linear spring curve delivers plushness off the top, extra mid-stroke support, and more tunable bottom-out progression. The benefits of EVOL are further enhanced by Fox Suspension's updated Lower Leg channels and Bleeders, which both function to reduce air pressure captured in the lower legs, allowing the EVOL air spring to operate freely without unintended interference. Technologies: Performance Elite Series: Performance Elite forks retain the same adjustments, features, dampers, weight, and 7000 series aluminum upper tubes as Factory Series, but have black anodised stanchions instead of Genuine Kashima Coat. Adjustments: High-speed compression (with VVC) 8 clicks. Low-speed compression 16 clicks. High-speed rebound (with VVC) 8 clicks. Low-speed rebound 16 clicks. Floating Axle: Floating axles might look similar to other axles, but in fact they offer a distinct performance advantage due to their unique ability to match the exact width of the fork’s wheel mounting surface precisely to the front hub flange spacing, thus creating perfect chassis alignment and eliminating unwanted friction between the upper and lower fork legs. Floating axles provide much smoother suspension movement throughout the entire range of the fork’s travel, notably improving sensitivity and overall ride quality. The all-new 36 and 38 come equipped with a new quick-release lever operated patent-pending floating axle system, combining the benefit of a floating axle with the ease of a tool-free quick-release. With this system, spacing is locked in via a floating sleeve, allowing repeated front wheel removal and reinstallation while maintaining perfect fork alignment. Floating sleeve positioning comes preset from the factory so if you are unsure of how to operate the floating axle system or simply don’t want to bother with it, you can just install the front wheel and get on with your ride. Lower Leg Bypass Channels: As a fork compresses, the air volume within the lower legs decreases, increasing air pressure. The more the fork compresses, the more pressure increases. This effect can have the unintended consequence of preventing full travel from being achieved. Fox Suspension's lower leg channels help alleviate this issue by dramatically increasing air volume within the lower legs and thereby reducing the amount of additional unintended pressure ramping. Another benefit of these channels is that lower leg bath oil is circulated to the upper reaches of the lower legs, continuously lubricating the foam rings and bushings as the fork compresses and extends through its travel. Bleeders: Fox Suspension's lower leg bleeders allow for atmospheric pressure equalization at the simple press of a button. Pressure build-up in the lower legs dramatically decreases fork performance, preventing full travel from being achieved, and diminishing small bump sensitivity and responsiveness. Lower Leg Arch: Stiffness-to-weight is the ultimate metric for bicycle design. Engineers invest countless hours poring over every ounce of material in an effort to optimize this critical ratio. Fox Suspension's all-new lower leg design pulls out all the stops, shaving every possible gram while making sure not to compromise stiffness or strength requirements of modern enduro and gravity style riding. Modern frame designs and geometry trends require modern suspension design solutions. The arch design of the all-new 36, 38, and 40 is designed to pair perfectly with modern Enduro and Downhill bikes. Head tube profiles have grown larger and larger, and fork offsets shorter and shorter. Fox Suspension's new arch shape takes this need into account by jutting forward to provide ample headtube clearance at full compression. State-of-the-art computer modeling techniques helped us to create an organic lower leg shape that optimizes stiffness with the absolute minimal amount of material. GRIP2: High-speed compression now with patented VVC (Variable Valve Control). GRIP2 is Fox Suspension's next-evolution sealed cartridge FIT system, the brand's highest-performing gravity-focused damper. Manufacturer's Part Numbers: 910-20-239 Black 27.5" QR110 160mm 44mm 910-20-232 Black 29" QR110 160mm 44mm
Fox Suspension 36 Float Performance Elite Grip 2 ForkPart of the prestigious Factory Series, this high-quality mountain bike (MTB) suspension fork comes trail-ready with anodised upper tubes for hard-wearing performance and durability wherever your next ride takes you. Engineered for everything from day long epics on your favourite trails to modern enduro racing, it's kitted out with Boost axle spacing for extra stiffness as you dominate your way around the mountain. Another highlight is its lightweight Float EVOL air spring and GRIP2 damper with Variable Valve Control (VVC) for undisputed tuneability and control. As a result, it's easy to dial in your settings to match your riding style as well as the terrain. Coming complete with 160mm travel as well as many of the brand's finest technologies, this is a great choice of upgrade for conquering everywhere from big backcountry routes to the EWS circuit.MTB Fork with GRIP2 DamperFox Suspension's GRIP2 damper is the benchmark for unparalleled ride quality and ultra-precise adjustability. GRIP2 includes the brand's patented Variable Valve Control (VVC) technology which allows for external fine-tuning of suspension performance. GRIP2 achieves with the twist of a knob what typically requires the time-consuming and complicated task of completely disassembling and reassembling the fork.Float EVOL Air SpringEVOL technology increases negative air spring volume, optimising small bump sensitivity. EVOL's linear spring curve delivers plushness off the top, extra mid-stroke support, and more tuneable bottom-out progression. The benefits of EVOL are further enhanced by Fox Suspension's updated Lower Leg channels and Bleeders, which both function to reduce air pressure captured in the lower legs, allowing the EVOL air spring to operate freely without unintended interference.Features: Upper Tubes Finish: Anodised Use: Mountain Bike (MTB), Enduro Axle: 15QRx110mm Boost Steerer Diameter: 1.5" tapered Air Spring: Float EVOL Damper: GRIP2 Variable Valve Control (VVC) Travel: 160mm Rake: 44mm Brake Rotor Compatibility: 180mm direct Post Mount, Up to 230mm compatible Starting Weight: 1965gTechnologies: Performance Elite: Performance Elite forks retain the same adjustments, features, dampers, weight, and 7000 series aluminum upper tubes as Factory Series, but have black anodised stanchions instead of Genuine Kashima Coat. Adjustments: High-speed compression (with VVC) 8 clicks. Low-speed compression 16 clicks. High-speed rebound (with VVC) 8 clicks. Low-speed rebound 16 clicks. Floating Axle: Floating axles might look similar to other axles, but in fact they offer a distinct performance advantage due to their unique ability to match the exact width of the fork's wheel mounting surface precisely to the front hub flange spacing, thus creating perfect chassis alignment and eliminating unwanted friction between the upper and lower fork legs. Floating axles provide much smoother suspension movement throughout the entire range of the fork's travel, notably improving sensitivity and overall ride quality. The all-new 36 and 38 come equipped with a new quick-release lever operated patent-pending floating axle system, combining the benefit of a floating axle with the ease of a tool-free quick-release. With this system, spacing is locked in via a floating sleeve, allowing repeated front wheel removal and reinstallation while maintaining perfect fork alignment. Floating sleeve positioning comes preset from the factory so if you are unsure of how to operate the floating axle system or simply don't want to bother with it, you can just install the front wheel and get on with your ride. Lower Leg Bypass Channels: As a fork compresses, the air volume within the lower legs decreases, increasing air pressure. The more the fork compresses, the more pressure increases. This effect can have the unintended consequence of preventing full travel from being achieved. Fox Suspension's lower leg channels help alleviate this issue by dramatically increasing air volume within the lower legs and thereby reducing the amount of additional unintended pressure ramping. Another benefit of these channels is that lower leg bath oil is circulated to the upper reaches of the lower legs, continuously lubricating the foam rings and bushings as the fork compresses and extends through its travel. Bleeders: Fox Suspension's lower leg bleeders allow for atmospheric pressure equalization at the simple press of a button. Pressure build-up in the lower legs dramatically decreases fork performance, preventing full travel from being achieved, and diminishing small bump sensitivity and responsiveness. Lower Leg Arch: Stiffness-to-weight is the ultimate metric for bicycle design. Engineers invest countless hours poring over every ounce of material in an effort to optimize this critical ratio. Fox Suspension's all-new lower leg design pulls out all the stops, shaving every possible gram while making sure not to compromise stiffness or strength requirements of modern enduro and gravity style riding. Modern frame designs and geometry trends require modern suspension design solutions. The arch design of the all-new 36, 38, and 40 is designed to pair perfectly with modern Enduro and Downhill bikes. Head tube profiles have grown larger and larger, and fork offsets shorter and shorter. Fox Suspension's new arch shape takes this need into account by jutting forward to provide ample headtube clearance at full compression. State-of-the-art computer modeling techniques helped us to create an organic lower leg shape that optimizes stiffness with the absolute minimal amount of material. GRIP2: High-speed compression now with patented VVC (Variable Valve Control). GRIP2 is Fox Suspension's next-evolution sealed cartridge FIT system, the brand's highest-performing gravity-focused damper.Manufacturer's Part Numbers: 910-20-239 Black 27.5" QR110 160mm 44mm 910-20-232 Black 29" QR110 160mm 44mmBuy Fox Suspension Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Podium performance: tailor made for the rigors of modern XC racing. The lightest 34 ever, the all-new 34 Step-Cast is designed from the ground up to deliver uncompromising XC race performance with class leading tuneability, chassis stiffness and strength.All-New chassisNew air/oil channelsNew arch shape offers improved head tube clearance with shorter rakesNew 58mm diameter crownUpdated EVOL air springSpecification:Wheel Size: 29"Colours: Matte BlackTravel: 120mmOffset: 44mmDamper: GRIP 3Pos SweepAxle to Crown: 530mm (120mm Travel)Max Tyre Size: 29 x 2.40"Rotor Size: 160-180mmSteer tube: 1.5 TaperAxle: Kabolt 110mmUpper tube Finish: Black AnodisedStarting Weight: 1560g
34 is the ultimate trail companion. Featuring an EVOL air spring, choice of dampers, and a lightweight yet robust chassis, you can count on 34 to get up and down the mountain, every time. FEATURES NEW graphics., FLOAT EVOL air spring adds plushness.. SPECIFICATION Damper: FIT GRIP., Travel: 140mm., Wheel size: 27.5"., 29".. Offset: 44 and 51 options., Air Spring: FLOAT., Axle: 15QR x 110 Boost., Steerer: 1.5 Taper., Starting Weight: 3.90 lb / 1770 g., Colours: Matte Black., Upper Tube Finish: Black Anodised..
Part of Fox Suspension's Performance Series, this XC suspension fork is equipped with a high-quality anodised finish on its upper tubes for extra durability and protection against corrosion during wet racing conditions. It's also kitted out with Boost axle spacing for additional stiffness as you charge across the most demanding of terrain conditions. Thanks to its Float EVOL air spring and FIT GRIP damper with a three-position lever, this model provides you with a wide range of adjustment features so you can easily tweak it to fit in with your riding style. Another highlight is its lockout feature that delivers increased efficiency, making it a dependable choice of upgrade for modern XC racing. XC Fork with Step-Cast Design 32 SC is the ultralightweight cross-country racing weapon. The Step-Cast's pioneering lower leg shape isn't just for looks, its narrow stance and stepped design saves weight, decreases frontal area, and provides clearance for the spokes and brake rotor. The 32 SC features 32mm upper tubes and ample bushing overlap for a quality ride and the hollowed-out lower legs provide even more weight savings. Optimised for 100mm of travel, the Step-Cast lower leg design and narrow crown spacing save weight while the 32mm upper tubes maintain FOX ride quality. Starting at 1387g, the 32 Step-Cast (SC) fork is classed by Fox Suspension as its lightest cross-country fork ever. FIT GRIP Damper with 3-Position Lever Inspired from moto, the GRIP damper uses Fox Suspension's FIT sealed cartridge technology combined with a coil-sprung, independent floating piston. GRIP allows excess oil to purge through specially designed ports at the top of the damper to maintain consistent damping and increase durability. Technologies: Performance Series: Performance Series forks retain the same black anodized 7000 series aluminum upper tubes as Performance Elite, except paired with a GRIP damper. Adjustments: Three on-the-fly compression damping positions Open, Medium, Firm. Additional micro-adjust between settings Detents. Low-speed rebound 10 clicks. Manufacturer's Part Numbers: 910-20-231 Black 27.5 QR110 100mm 44mm 910-20-227 Black 29 QR110 100mm 44mm 910-20-226 Black 29 QR100 100mm 51mm 910-20-224 Black 29 QR110 100mm 51mm 910-20-225 Black 29 QR100 100mm 44mm
The hard charging do it all trail fork. Smoother, lighter, more tuneable, and more capable than ever before; when it comes to a do-it-all trail fork the 34 is in a class of its own.All-New chassisNew air / oil channelsNew arch shape offers improved head tube clearance with shorter rakesNew 58mm diameter crownUpdated EVOL air springSpecification:Wheel Size: 29"Colour: Matte BlackTravel: 140mmOffset: 44mm / 51mmAvailable Dampers: GRIP 3PosAxle to Crown: 554mm (140mm Travel)Max Tyre Size: 29 x 2.60"Rotor Size: 180-230mmSteer tube: 1.5 TaperAxle Options: 15 x 110 QRUpper tube Finish: Black AnodisedStarting Weight: 1800g
Fox Suspension 38 Float Performance Grip ForkPart of Fox Suspension's Performance Series, this enduro fork features a high-quality anodised finish on its upper tubes for extra durability as well as protection against corrosion during wet riding conditions. Another highlight is it comes equipped with a Float EVOL air spring and a GRIP damper with three-position on-the-fly adjustability. This makes it simple to dial in your favourite settings, so your suspension matches your riding style as well as the terrain conditions. Also benefitting from Boost axle spacing for increased stiffness and strength, plus many of the brand's finest technologies, this model is ready for hard-hitting enduro rides.Enduro Fork with Float EVOL Air SpringEVOL technology increases negative air spring volume, optimising small bump sensitivity. EVOL's linear spring curve delivers plushness off the top, extra mid-stroke support, and more tuneable bottom-out progression. The benefits of EVOL are further enhanced by Fox Suspension's Lower Leg channels and Bleeders (push-button bleeders available separately), which both function to reduce air pressure captured in the lower legs, allowing the EVOL air spring to operate freely without unintended interference.FIT GRIP DamperInspired from moto, the GRIP damper uses Fox Suspensions FIT sealed cartridge technology combined with a coil-sprung, independent floating piston. GRIP allows excess oil to purge through specially designed ports at the top of the damper to maintain consistent damping and increase durability. Packing the same revolutionary features as the 36 model while redefining what you think a long travel single crown fork is capable of, the Fox Suspension 38 Float Performance Grip Fork sets a new benchmark for confidence, performance, and durability. Features: Upper Tubes Finish: Anodised Use: Enduro Axle Size: 15QRx110mm Boost Steerer Diameter: 1.5" tapered Air Spring: Float EVOL Damper: GRIP (3-position on-the-fly adjustability) Adjustments: Compression damping positions Open, Medium, Firm; Additional micro-adjust between settings Detents; Low-speed rebound Travel: 170mm Rake: 44mm Compatible Rotor Size: 180mm direct Post Mount, up to 230mm compatible Starting Weight: 2180gTechnologies: Performance Series: Performance Series forks retain the same black anodized 7000 series aluminium upper tubes as Performance Elite, except paired with a GRIP damper. Push-button bleeders are not included but can be purchased separately. Adjustments: Three on-the-fly compression damping positions Open, Medium, Firm. Additional micro-adjust between settings Detents. Low-speed rebound 10 clicks. Floating Axle: Floating axles might look similar to other axles, but in fact they offer a distinct performance advantage due to their unique ability to match the exact width of the fork's wheel mounting surface precisely to the front hub flange spacing, thus creating perfect chassis alignment and eliminating unwanted friction between the upper and lower fork legs. Floating axles provide much smoother suspension movement throughout the entire range of the fork's travel, notably improving sensitivity and overall ride quality. The all-new 36 and 38 come equipped with a new quick-release lever operated patent-pending floating axle system, combining the benefit of a floating axle with the ease of a tool-free quick-release. With this system, spacing is locked in via a floating sleeve, allowing repeated front wheel removal and reinstallation while maintaining perfect fork alignment. Floating sleeve positioning comes preset from the factory so if you are unsure of how to operate the floating axle system or simply don't want to bother with it, you can just install the front wheel and get on with your ride. Lower Leg Bypass Channels: As a fork compresses, the air volume within the lower legs decreases, increasing air pressure. The more the fork compresses, the more pressure increases. This effect can have the unintended consequence of preventing full travel from being achieved. Fox Suspension's lower leg channels help alleviate this issue by dramatically increasing air volume within the lower legs and thereby reducing the amount of additional unintended pressure ramping. Another benefit of these channels is that lower leg bath oil is circulated to the upper reaches of the lower legs, continuously lubricating the foam rings and bushings as the fork compresses and extends through its travel. Lower Leg Arch: Stiffness-to-weight is the ultimate metric for bicycle design. Engineers invest countless hours poring over every ounce of material in an effort to optimize this critical ratio. Fox Suspension's lower leg design pulls out all the stops, shaving every possible gram while making sure not to compromise stiffness or strength requirements of modern enduro and gravity style riding. Modern frame designs and geometry trends require modern suspension design solutions. The arch design of the all-new 36, 38, and 40 is designed to pair perfectly with modern Enduro and Downhill bikes. Head tube profiles have grown larger and larger, and fork offsets shorter and shorter. Fox Suspension's new arch shape takes this need into account by jutting forward to provide ample headtube clearance at full compression. State-of-the-art computer modeling techniques helped us to create an organic lower leg shape that optimizes stiffness with the absolute minimal amount of material. Elliptical Steerer: The 38's elliptical steer tube is one of many ways we've further optimized stiffness-to-weight, placing more material only where it is needed, and eliminating every ounce of it where it's not. 58mm crown diameter to match modern frame shape profiles. Optional mudguard with sturdy and seamless 4-point direct-mount attachment protects upper tubes and dust wipers from dirt and debris (available separately). 31% stiffer transverse shear, 9% stiffer fore/aft and 20% torsionally stiffer than the 36 model.Manufacturer's Part Numbers: 910-21-029 Black 27.5" QR110 170mm 44mm 910-21-021 Black 29" QR110 170mm 44mmBuy Fox Suspension Components from Chain Reaction Cycles, the World's Largest Online Bike Store.