Stans Arch MK4 Rear 29" Wheel 12x148 MicroSpline Tubeless Ready

Experience the perfect blend of lightweight performance and rugged durability with the Stan's No Tubes Arch MK4 Rear 29 12x148 MicroSpline wheelset. Engineered for all-mountain, downcountry, and trailduro riding styles, this wheelset is designed to elevate your riding experience across every terrain. Whether you’re climbing steep ascents or tackling technical descents, the Arch MK4 offers the confidence and reliability you need to push your limits.

Featuring a 28mm internal rim width combined with a patented low-profile design, the Arch MK4 balances climbing efficiency with downhill control. Its durable 6069 aluminum construction, reinforced spoke bed, and welded seam ensure exceptional strength and longevity. The asymmetric rim design with offset spoke holes improves spoke tension and creates a stronger, more resilient wheel without compromising tubeless performance. With Stan’s renowned Bead Socket Technology, you get an airtight tubeless seal that’s both reliable and easy to maintain.

At the heart of the Arch MK4 are the innovative M-pulse hubs, CNC machined in Bend, Oregon. These hubs engage quickly with just 1.66° of rotation, thanks to a unique pawl system featuring neodymium magnets. This design offers rapid power transfer with minimal drag, allowing you to maintain speed and momentum effortlessly. Built with premium Enduro bearings and robust 7075 aluminum axles, these hubs are engineered for durability and smooth rolling performance. Plus, the wheelset is tubeless ready out of the box, complete with pre-installed rim tape and presta valves for quick setup.

Offered with Shimano Micro Spline, HG, or SRAM XDR freehub options, and compatible with both 6-bolt and Centerlock brake standards, the Arch MK4 wheelset fits a wide range of axle configurations. Its versatile design and easy serviceability, including common spoke lengths front and rear, make it a practical choice for riders who demand top-tier performance and reliability on every ride.

What It’s Good For

• All-mountain, downcountry, and trailduro riding where versatility is key.
• Climbs and descents, providing a balance of light weight and downhill strength.
• Riders seeking a durable, tubeless-ready wheelset with easy maintenance.
• Those who want rapid engagement and smooth rolling from high-performance hubs.
• Compatibility with a broad range of drivetrain and brake standards.

What It’s NOT Good For

• Riders looking for carbon wheels or ultra-lightweight race-specific setups.
• Applications outside of mountain biking, such as road cycling or BMX.
• Users requiring wheels incompatible with the specified axle or freehub options.
• Situations where tubeless setups are not preferred or required.

Frequently Asked Questions

Are the Arch MK4 wheels compatible with my bike’s brake system?
Yes, the Arch MK4 wheelset is available with both 6-bolt and Centerlock brake mounts, making it compatible with most popular disc brake systems.

Can I use these wheels with different drivetrain brands?
Absolutely. The Arch MK4 wheels offer Shimano Micro Spline, HG, and SRAM XDR freehub options, ensuring compatibility with a wide range of drivetrain setups.

Is the wheelset ready for tubeless tires?
Yes, the Arch MK4 comes tubeless-ready with pre-installed rim tape and presta valves, allowing for easy and reliable tubeless tire installation right out of the box.

How durable are the hubs and spokes?
The hubs feature CNC-machined 7075 aluminum axles and premium Enduro bearings, combined with strong, serviceable J-bend spokes. This construction ensures long-lasting durability and smooth performance.