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Cycling

$649.99
Rally RS100 is tested to the extreme, so you can ride there too. This single-sensing power meter delivers reliable power measurements and is easy to transfer between bikes, no matter what bike you're on or where you're riding. - Impeccably Designed Pedal—Rally power meters have undergone rigorous testing to increase reliability. Featuring a superior design with sensors housed inside, this pedal installs like any other pedal. And it's quick to transfer between bikes. - Reliable Readings—By reliably measuring your cadence and forces detected on the left pedal, Rally RS100 doubles the value to provide total power. Want more metrics? Upgrade later to the dual-sensing system (sold separately). - Cleat Compatibility—For a comfortable ride, this pedal is designed to fit your favorite Shimano SPD-SL cleats. - Transferable Spindle—From road to gravel to cyclocross and much more, keep riding year-round with a transferable spindle that can be installed in the Rally RS/Rally RK road pedal body kits (each sold separately). - Battery Life—Make sure you're ready for those long rides and training sessions with up to 120 hours of battery life. Specs: - Battery type: LR44/SR44 (x4) or CR1/3N (x2) - Battery life: up to 120 hours - Maximum rider weight: 105kg - Accuracy: +/- 1% - Field calibration - Adjustable release tension - Measurement location: spindle - Communication: ANT+ and BLUETOOTH - Weight: 328g - Water resistance: IPX7 - Cleat type: SPD-SL - Q-factor: 53mm (55mm with provided 2mm washer) - Stack height: 12.2mm In the Box: - Rally RS100 pedals - Cleat hardware - 55mm Q-factor washers - Documentation
$699.99
The Campagnolo Super Record EPS Ergopower shift lever features effective ergonomics and the best of Campagnolo's shifting and braking technology. - Campagnolo's Multishifting technology allows you to change several sprockets on the 12-speed cassette with a single shift - When the chain engages immediately, the derailleurs can be actioned with minimum effort and in any position on the handlebars, allowing for quick shifting - The controls offer a stable and safe grip when standing pedaling or when leaning high on the handlebars - Shaped cushioning and an adjustable reach make these controls perfect for any cyclist, regardless of hand or finger size - The flat-mount Campagnolo brake caliper ensures powerful, modular braking in any situation owing to pistons measuring 22mm in diameter - Brake pad return guaranteed by the magnetic system ensures that there is no friction at the time of brake lever release - A special metal plate positioned between the pad and the caliper piston, cushions the vibrations during braking Specifications: - Pad Compound: Semi-Metallic - Brake Caliper Mount: Flat Mount - Brake Lever Use: Right - Hydraulic Fluid Type: Mineral Oil - Front Der/Shifter Compatibility: Campy Record/Super Record EPS - Rear Der/Shifter Compatibility: Campy Record/Super Record EPS - Drivetrain Speeds: 12 - Adjustable Reach: Yes
$649.99
The EC70 AX wheels connect EC70 carbon rims to our proven X5CL hub with 28 3x double butted Sapim straight pull spokes. End cap and axle components are available for all major industry standards. Wide, 24mm internal rims are optimized for gravel tires 35mm and larger, giving you a more confident tire stance for control on the ground during your expansive adventure rides, single track forays and unrelenting gravel races. Our Easton Overland team and SDG Muscle Monster team riders have put these wheels to the test, racing prototypes at DK200, with Amity Rockwell taking the DK Queen title and Amanda Nauman finishing 6th, while at Lost and Found 2019 Michael Van Den Ham came in 4th and Craig Richey took 6th.
$619.99 $775.00 20% Off
You have places to go, people to see, and fitness goals to achieve. We get it—life moves pretty fast, so it's a good thing we made Sirrus to help you with all of it. Wherever you're heading, Sirrus will take you there. Sirrus features a super light Aluminum Alloy and carbon fiber construction, as well as reliable Shimano components that are built to withstand years of daily abuse on the world's pavement. Powerful hydraulic disc brakes provide reliable stopping power in any condition, and comfortable, ergonomically designed Body Geometry touchpoints are there to take the sting out of longer rides. So, as you push yourself to reach your goals, you'll feel more connected to your bike and know that you have the perfect partner with Sirrus. Lightweight A1 Alloy frame with 42c tire clearance, clean internal cable routing and mounting points for a range of accessories give maximum flexibility. - Intuitive and easy to use Shimano rapid fire 2x8 wide range shifting. - Powerful Hydraulic disc bakes for safety and control.
$657.00
- Low-profile 30mm internal width optimizes tire shape, traction, and control for 2.3-2.6" tires - Durable 6069 aluminum with welded joint and reinforced spoke bed - BST Asymmetric design combines Stan's legendary easy tubeless inflation with a stronger, more balanced wheel build - Reinforced spoke bed, combined with the offset drilling of the asym design, builds into an incredibly durable wheel that brings added confidence to every ride.
$657.00
- Low-profile 30mm internal width optimizes tire shape, traction, and control for 2.3-2.6" tires - Durable 6069 aluminum with welded joint and reinforced spoke bed - BST Asymmetric design combines Stan's legendary easy tubeless inflation with a stronger, more balanced wheel build - Reinforced spoke bed, combined with the offset drilling of the asym design, builds into an incredibly durable wheel that brings added confidence to every ride.
$729.99
The DB Kitsuma shock was designed to be very intuitive and easy to use for the rider, on and off the trail. It boasts a wider range of damping adjustment on the compression circuit and increased range of rebound control over any other major shock on the market today. - Three Position Climb Switch provides three distinct modes, drastically affecting the shock's feel and character. The new three position climb switch retains the "Descend" and patented "CS" mode, while adding a new "Firm" mode - Tool-Free adjustments are ergonomically designed to be easily accessible and adjustable trail-side—giving riders the power of a pro-tune at their fingertips - The rebound range has been shifted downward for more rebound damping to accommodate the larger spring rates needed for more modern bikes
$739.00
Zipp's 101 XPLR is our first purpose-built rim for gravel. Thanks to MOTO Technology, this wheelset arms gravel cyclists with more control and durability over harsh terrain, providing a smooth ride quality that helps reduce fatigue. That means a more comfortable ride. The 101 XPLR -short for explore-is purpose-built for riders searching for adventure beyond the norm. Think of it as a magic carpet ride over primitive roads, especially with large tubeless tires at lower tire pressures. This rim is ideal for gravel racing, adventure, or any long day in the saddle. Based on Zipp's MOTO Technology, the 101 XPRL's single-wall rim construction provides excellent compliance and vibration damping. Less fatigue, allows you to ride longer and faster. Quarq's TireWiz is an add-on option for 101 XPRL to dial in your pressure for an even more compliant ride. - All day comfort and compliant ride - Available in 700c or 650b - 27mm wide internal profile - Reduced chance of pinch flatting - More traction in rough corners - Smoother ride in rocky terrain - Ability to run lower tire pressure - Less fatigue, which allows you to ride longer and faster - Frustration-free tire installation - Lifetime Warranty
$699.95
You love the accuracy, efficiency, and trail feedback that only a rigid mountain bike fork can provide. And, of course, you love carbon fiber. The Ritchey WCS Carbon Mountain Bike fork was made for you and your riding style. Our deep mountain biking heritage, decades of on-trail research, and mastery of modern materials come together to provide a fork that offers an unrivaled riding experience. The one-piece monocoque construction (WCS) of this fork also includes full carbon dropouts as well as non-removable, one-piece carbon disc brake tabs. This fork also features suspension-corrected axle-crown height, plus a Ritchey compression plug is included. - Material: carbon fiber - Quick release (not included) - Post Mount disc brake - Disc brake rotor compatibility: 160mm (max 180mm) - Steerer length: 300mm - Crown diameter: 50mm (straight 1-1/8”) – 61mm (tapered 1-1/2”) - Fork lenght: 459mm (27.5”) - 470mm (29”) - Rake/Offset: 42mm (27.5”) – 45mm (29”) - Spacing: 87mm - Minimum tire clearance: 6mm - Weight: 615g (with uncut steerer / not including axle)
$527.95
Proper frame preparation is very important. Park Tool's Head Tube Reaming and Facing Set combines reaming and facing of the head tube to create a perfect fit for most sizes of head cups. Includes: • 30.1 mm reamer (part #751.2) and four different size pilots (29.8mm, 30.0mm, 33.8mm, and 36.8mm) • 690 facer • Quick-release, quick-adjust feature: bottom portion slides off and on easily without threading SHIS terminology: The HTR-1 as stock will face frames of EC29, EC30, EC34 and EC37. It will ream frames of EC30. Accessories will allow service in other standards.
$577.45
The new Record 12x2 Speed crankset: a new hole-free design for the right-hand crank that optimizes aerodynamics. The new carbon fiber Record 12x2 Speed crankset with unidirectional finishing guarantees continuity with the finishing of the entire groupset, whilst maintaining the Ultra-Torque bracket system on the steel axle to ensure perfect transmission of power. The new Record 12x2 Speed crankset can be installed on any type of frame, whether or not it is being used with disc brakes because it optimizes the chain line on the frame with a rear hub flange measuring 130, 135 or 142 millimeters without affecting the Q factor that remains constant at 145.5 millimeters. The innovative design of the outer chainring ensures faster, quieter derailing owing to the contoured pin. The symmetrical design of the inner chainring teeth allows improved stability with chain crossovers. The double wheel sizing standards (112 and 145 millimeters) enable reducing the weight through greater use of carbon fiber. There are eight fixing screws for increased structural stiffness. The varying number of pins for each of the three chainring combinations (34/50, 36/52, 39/53) facilitates upshifting due to the optimized free strokes associated with each combination. The special drains on the inside of the outer chainrings optimize performance when downshifting in dead spots.
$538.00
It's an all-new derailleur that's specifically designed and optimized to be motor-driven instead of cable-actuated. AXS powered components enable customization and scale to an individual rider's liking via the AXS App. It features a shorter cage for 10mm more ground clearance, with more chain wrap on the cassette to sit slightly further forward, and further inboard from mechanical Eagle. The Eagle AXS derailleur is smart enough to protect itself thanks to its incredibly resilient Overload Clutch. In the event of an impact, the motor gearbox disengages, giving the derailleur freedom to move, and instantly returns back to its position for a seamless experience for the rider. The system is tested to IP69K water and dust proofing standard for creek crossings, mud splatterings and the resulting post-ride pressure washings. - Enduro focus and trail ready - Forged aluminum cage - Stainless hardware - Black/Polar colorways - Eagle technology - Overload Clutch protection - AXS enabled componentry software that makes it possible to both program and personalize new SRAM and RockShox components - System is completely water and dust proof to IP69K - Eagle AXS is designed to work with X-DOME Eagle cassettes only, providing the most precise, silent, and reliable shift performance available.
$605.90
Nowadays, road riding is much more than riding on a road. Gravel, rough roads, fenders, lights and racks have broadened the horizon and ER 1400 is the premium alloy choice. It's 20mm, super light and resilient rim and 240s based hub is just what you need when rides lead into the unknown. - 240s based Spline hub with 36t ratchet system - Straight-pull hub and spokes are laced 2-cross - Includes tubeless ready tape and tubeless valve
$537.00
Little riders with big dreams. Until now, a premium fork was tough to find for smaller riders. Welcome Reba 26, a fork specifically tuned for lighter riders to simplify the ride experience and allow for a lower pressure range. Features - New graphics are easy to read and make a fresh impact - Specifically tuned for smaller riders - External rebound adjustment - Offset: 40mm
$537.00
Revelation is all grown up and ready to explore, wherever the trail may turn. Value-packed, the Revelation features an updated DebonAir spring paired with a Motion Control damper and 35mm Fast Black upper tubes. - Updated highly tunable DebonAir air spring offers a buttery smooth feel off the top and maintains a higher ride height for increased confidence in steep terrain - Motion Control damping featuring low-speed compression adjustment to firm - Chassis is derived from the renowned Pike fork - New graphics package for a fresh, premium look
$537.00
Yari shares the stiff, hard-hitting chassis as the Lyrik and combines it with the updated DebonAir air spring and proven Motion Control damper. The Yari fork is designed to inspire confidence for those hard-hitting enduro and E-MTB riders alike. - Updated highly tunable DebonAir air spring offers a buttery smooth feel off the top and maintains a higher ride height for increased confidence in steep terrain - New graphics package for a fresh, premium look - Motion Control damping featuring low-speed compression adjustment
$729.00
The all-new Bomber DJ is back in the mix with a whole new bag of tricks. Sharing the same 36mm chassis as its big brother, the Z1, the DJ comes in a dedicated 26" wheel configuration. Featuring a 20x110mm axle, the DJ is designed for maximum stiffness and offers seamless compatibility with existing DJ and DH front hub spacing standard. - Dedicated 26" wheel configuration delivers shortest possible crown height for flickable front end - Legendary Bomber durability with 36mm stanchions - Buttery and easy-to-use GRIP damper - Tapered steerer tube for maximum stiffness - Adapters available for 15 x 100mm axle - 1.5 Tapered steerer - Offset: 37mm
$525.00
A thoughtful complement to the Whisky No. 9 MTN Boost LT Fork, this short-travel offering is just the piece for transforming hardtail racers into fully rigid cross-country champs. Lightweight carbon construction, a tapered steerer, and thru-axle dropouts promise dependable strength and steering. - Lighter and stiffer than a suspension fork, the MTN Boost ST Fork is long enough to replace forks with 110–120mm of travel - 485mm axle to crown - Boost 110mm spacing with clearance for 29 x 3.0” or 27.5 x 3.0” tires - Room for up to 180mm rotor - Whisky No.9 Thru Bolt and compression plug included
$679.99 - $699.99
- Super Record disc brake shifter/brake lever and caliper - Pre-assembled, with pre-bled hydraulic housing - Adjustable lever reach - AMS system allows adjustments of the modulation and lever travel - Vibration-canceling brake pads for quiet performance - Magnetic return spring - Ultra-Shift mechanism allows multi-shifts in both directions (4 up, 5 down) - Weight: 697g per pair (levers, hoses, calipers and fluid)
$657.00
- Asymmetric rim design allows for a stronger wheel while offering the easy inflation and Stan's trademark unmatched airtight seal. - 25mm width optimized for 40mm Gravel tires and up to 2.3" mountain tires - Light and durable 6069 aluminum with welded joint and reinforced spoke bed
$594.99
- The stiffest and most aero integrated handlebar and stem system - All carbon construction - Di2 compatible with integrated junction box compartment and wiring conduits - Compact 125mm drop, 80mm reach - 395g
$565.00
Sleek and serviceable, the Whisky No.9 CXLR Fork is a tough, lightweight upgrade for gravel riders and bikepackers looking to carry a little cargo up front. Sporting 3-pack mounts, mid-blade mounts for low-rider rack compatibility, and fender eyelets on the outside of the fork legs for easy mounting, the CXLR keeps everything clean and tidy with internal routing for brakes and dynamo hubs. Additional features like flat-mount brakes, 12mm thru-axles, and ample tire clearance make this standout piece perfect for your packing setup. - 12mm thru-axle, 100mm spacing - 700c x 42mm or 650b x 50mm max recommended tire size - ASTM Condition 3 – For rough off-road riding and jumps less than 24 - Includes thru-axle and Whisky Parts Co. compression plug - Brake Mount: Flat Mount 140 - Material: Carbon - Weight: 526g - Steerer Type: Tapered - Offset/Rake: 45 - Steerer Tube Length: 350mm - Axle to Crown Length: 395mm - S.H.I.S. Crown Race Diameter: 40 - S.H.I.S. Stem Clamp Diameter: 28.6 - Fork Minimum Rotor Size: 140 - Fork Maximum Rotor Size: 160
$649.99 $775.00 16% Off
You have places to go, people to see, and fitness goals to achieve. We get it—life moves pretty fast, so it's a good thing we made Sirrus to help you with all of it. Wherever you're heading, Sirrus will take you there. Sirrus features an alloy frame and steel fork construction, as well as reliable Shimano components that are built to withstand years of daily abuse on the world's pavement. Powerful hydraulic disc brakes provide reliable stopping power in any condition, and comfortable, ergonomically designed Body Geometry touchpoints are there to take the sting out of longer rides. So, as you push yourself to reach your goals, you'll feel more connected to your bike and know that you have the perfect partner with Sirrus. - Lightweight A1 Alloy frame with 42c tires clearance, clean internal cable routing and mounting points for a range of accessories give maximum flexibility. - Intuitive and easy-to-use Shimano 2x8 wide-range shifting. - Powerful hydraulic disc bakes for safety and control.
$611.90
The pinnacle of aluminum road wheels. The ceramic OXIC surface coating brings brake performance to rim brakes like it has never be seen before. The rims are wide, asymmetric, and lightweight, making for an outstanding stiffness to weight ratio. If set up tubeless, supreme comfort and grip are added to the athletic character. - OXiC rim surface technology for improved braking performance and wear - Tubeless Ready rim compatible with standard clincher tires - 240 hub and ProLock Squorx ProHead spokes built with radial lacing - Factory installed tubeless-ready tape - Includes titanium RWS skewer, tubeless valve and Swissstop BXP blue brake pads
$600.00
The all-new Rapide Cockpit is a lot more than just the fastest way to the finish line. It's the fastest leading edge we've ever made, putting aero gains in the clean air, where they matter most and shaving four watts off the already ultra-quick two piece Rapide Bar and Tarmac SL7 Stem. But to deliver a leading edge that provides a winning edge takes more than pure aero. The goal for the Roval engineering team was simple—the Rapide Cockpit had to be the fastest bar we've ever made, with no compromises. It's aero, light, stiff, and designed hand-in-hand with the best riders in the world and our Retül fit experts so you can get a grip on victory. AERODYNAMIC: Removing the cluster of hardware (where stem and handlebar connect) allowed us to design the bar's leading edge a single airfoil. We optimized this airfoil to provide a maximum advantage in clean air at speeds seen from long solo breakaways to full gas World Tour sprints. While a four watt improvement may seem small, it adds up to a 32cm lead over a 250m final sprint. When races are won by bike throws, this is a winning difference. LIGHT AND STIFF: By removing the stem's hardware cluster the Rapide Cockpit is 50 grams lighter (100mm x 420mm) than a two piece Rapide bar and Tarmac SL7 combo. Made from premium high-modulus carbon fiber, that delivers ideal stiffness for the biggest, fastest sprinters on the World Tour, the Rapide Cockpit has a higher stiffness-to-weight ratio than any two piece system we've ever made. FIT: The downside of one-piece cockpits has long been fit, but we partnered with our Retül fit professionals and the best riders in the world to ensure almost every rider can find their fit. We offer 15 different stem and bar combos, all at -6 degree, so we've got your race day position covered. The radius from tops to drops has been sculpted for wrist clearance whether out of the saddle in a final sprint or tucked in an aero position, while bend and flare reflect our favorite Rapide bar. - Aerodynamically engineered to save 4 watts vs a traditional aero road bar - Material: Premium High Modulus Carbon Fiber, Titanium Stem Bolts - Sizes: 15 combos from (75mm x 380mm) to (125mm x 440cm) - Bend: 125mm drop x 75mm reach, 4 degrees of flare at the drops - Stem Angle: 6-Degrees - Steer Clamp Diameter: 31.8 - Weight: 310 grams (100mm x 420mm) - Cable Routing: Shimano, SRAM, Campagnolo ( Internal/Electronic Compatible) - Compatible with Roval bolt on computer mount, S219900058. - System Weight Limit: 275lbs/125kg
$524.99
Designed for our professional athletes, the Sidi Shot 2S is crafted to deliver optimal power transfer while ensuring the utmost comfort, enabling athletes to stay focused on the road. Its carbon C-Boost sole harnesses the full strength of woven fibers, while the upper is constructed using Bioveg material derived from recycled microfibers and finished with an external plant-based coating. The innovative closure system is strategically positioned away from other riders, enhancing maneuverability in crowded situations. The adjustable heel retention mechanism allows you to secure the heel of the shoe, tightening the heel so that it conforms to any riders' heel shape. - The Tecno-3 Push Flex closure reduces the pressure zone on the instep and significantly improves the comfort of the closure  - The Adjustable Heel Retention Device reinforces the top of the heel cup and improves the fit by closing the back of the shoe securely around the rider's heel - The heel retention device tightens the top of the heel cup so that the heel is secured during steep climbs and sprints. Each side of the heel can be adjusted independently for a perfect fit - The all new Sidi integrated heel cup is reinforced to avoid deformation after prolonged efforts and extreme pressure. Anatomically shaped, it stabilizes and supports the foot while pedaling - The C-BOOST SRS Sole is made of the latest generation carbon, designed to conform to the metatarsal area, increasing the transmission of power directly to the pedals, guaranteeing ideal power transfer and support - Oval holes extend the adjustment position of the cleat by ± 5 mm and a millimeter scale is included for determining the riders personal cleat position - Provided with SRS (Sole Replacement System) inserts in Nylon and TPU, with the function of protecting the carbon in the areas most subject to deterioration from use and for increased durability while walking - The SRS inserts are integrated with ventilation holes that promote the circulation of air inside the sole with each pedal stroke
$524.99
Designed for our professional athletes, the Sidi Tiger 2S efficiently transfers all the power you can unleash while maintaining a high level of comfort, allowing you to focus entirely on the course. The Tecno 3 closure is strategically placed to prevent contact with other riders in crowded situations. The upper is made of Bioveg material derived from recycled microfibers with a plant based external finish. The MTB SRS Carbon sole harnesses the strength of interwoven carbon fibers for efficient energy transfer and its SRS technology allows riders to maintain maximum grip level at all times. -The Tecno-3 Push Flex completely eliminates the pressure zone on the instep and significantly improves the comfort of the closure -Like most Sidi small parts, the Tecno-3 System is serviceable and replaceable -The adjustable heel retention device reinforces the top of the heel cup, closing the back of the shoe securely so the heel doesn't slide out during steep climbs or sprints -The all new Sidi Integrated Heel Cup is light, comfortable and reinforced to avoid deformation -Each side of the heel can be adjusted independently for a perfect fit -The upper part of the toe section is protected with anti-slip rubber to resist and deflect impacts from stones or debris when cycling -The MTB SRS Carbon-Ground Sole raises the standard for mountain bike performance, dropping around 100 grams per pair compared to the previous Dragon Carbon SRS sole without sacrificing power or durability -The MTB SRS Carbon-Ground Sole consists of replaceable tread blocks in the toe and heel attached to a medium-modulus carbon sole -The Ground SRS treads and MTB Plate are easily removable and replaceable and the sole is toe-spike compatible -To improve walkability, Sidi cycling shoes include a replaceable polyurethane heel pad
$565.00
The XX1 Eagle Fat Bike DUB crankset has been re-examined and re-engineered. Featuring SRAM’s DUB technology, this design simplifies the relationship of the spindle to the bottom bracket. DUB-powered cranksets mean simplicity, compatibility, and durability. - SRAM DUB technology creates a lighter, stiffer and stronger crankset - Carbon-tuned lay-up crank design provides extreme stiffness and light weight - Included direct mount X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and durability - Chainring is designed specifically for Eagle chains and drivetrains - DUB compatible bottom bracket sold separately - Fat bike frame compatible - BB Included: No - Chainring BCD: SRAM Direct Mount - Crank Intended Use: Mountain - Number of Chainrings: Single - Drivetrain Speeds: 12, 11, 10 - Spindle Interface Type: SRAM DUB - Chainline/Hub Compatibility: 190/197 Hubs
$554.00
The XX1 Eagle DUB crankset has been re-examined and re-engineered. Featuring SRAM’s DUB technology, this design simplifies the relationship of the spindle to the bottom bracket. DUB-powered cranksets mean simplicity, compatibility, and durability. - SRAM DUB technology creates a lighter, stiffer and stronger crankset - Carbon-tuned lay-up crank design provides extreme stiffness and light weight - Included direct mount X-SYNC 2 chainring provides significantly quieter performance, with better mud clearing and durability - Chainring is designed specifically for Eagle chains and drivetrains - DUB compatible bottom bracket sold separately - Boost Compatible - BB Included: No - Chainring BCD: SRAM Direct Mount - Crank Intended Use: Mountain - Number of Chainrings: Single - Drivetrain Speeds: 12, 11, 10 - Spindle Interface Type: SRAM DUB - Chainline/Hub Compatibility: 141/148 Boost Hubs
$657.00
The Arch MK4 is the wheelset a lot of us here at Stan's choose to ride. All-mountain, Downcountry, Trailduro—whatever they're calling it this week, when you like pushing your limits on climbs, descents, and every kind of trail, this is your wheelset. The Arch MK4's 28mm internal width and patented lightweight, low-profile design is not afraid to climb, while being an absolute monster on the descents. With a welded seam, reinforced spoke bed, and durable 6069 aluminum construction, the Arch MK4 rims give you the confidence to ride everything. When it comes to a consistent and reliable airtight tubeless seal, nothing beats Stan's patented Bead Socket Technology. The Arch MK4 rims feature an asymmetric design with offset spoke holes to improve spoke angle and create a stronger all-around wheel. Unlike most asymmetric rims that suffer from difficult inflation and poor tubeless performance, Stan's BST-Asymmetric design delivers all the advantages of a stronger wheel, with no compromises in tubeless performance. Nobody likes downtime, so the Arch MK4 wheelset is built with traditional J-bend spokes based on their proven strength, ride quality, and easy serviceability. Stan's has always made it easy to find replacement spokes should you ever damage your wheel, and now we've made it even easier. MK4 front and rear wheels of the same diameter all use the exact same very common spoke length, both sides, front and rear. Serviceability doesn't get any easier than that. From the first click of the incredible M-pulse hubs, it's clear that confidence is the philosophy behind every part of this wheelset. Designed and CNC machined by Project321 in Bend, Oregon, M-pulse freehubs feature 6 pawls with Neodymium magnets that lock into place with greater force than conventional pawl springs, but offer virtually no resistance when coasting. Multiple teeth on each pawl offer better load distribution for years of trouble-free riding, and the angle of the pawls was engineered to transfer stress away from the rotating bearings, decreasing stress and wear on the entire freehub. That durability extends to the 17mm axles machined of 7075 aluminum and the full complement of Enduro brand bearings, including a double-row freehub bearing. M-pulse internals are also fully shielded inside the hub, because the only thing better than a good bearing seal is a good bearing seal most dirt can't even reach. As durable as they are, these hubs are also built for speed. M-pulse hubs engage with only 1.66°of rotation, putting down power nearly instantaneously, but how smooth these hubs roll is what really stands out. Adjustable preload allows you to fine tune M-pulse hubs for reduced friction, and less drag means more speed on the ground.The result is a bombproof hub with quick, consistent engagement and less resistance for more speed. Available with Shimano Micro Spline, HG, or SRAM XDR freehub, and 6-bolt or Centerlock brake style, with options to fit all popular axle configurations. Tubeless ready with rim tape installed. The Arch MK4 is our most versatile wheelset, and the best aluminum wheelset available for riders who want to push limits on every trail. Up, down, and wherever the ride takes you, the Arch MK4 wheelset has it under control. - Arch MK4 wheels include pre-installed tape for tubeless use and presta valves. - Versatile 28mm internal rim width optimized for 2.2-2.5” tires - Light and durable 6069 aluminum with welded joint and reinforced spoke bed - BST-Asymmetric design combines Stan’s legendary easy tubeless inflation with a stronger, more balanced wheel build - M-pulse ultra-low drag magnetic pawl adjustable hubs with 1.66° engagement - Enduro bearings with double-row freehub bearing - Matched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceability - Connection program includes 5-year hub warranty, 3-year rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice