Rim MTN 26" ZTR ARCH MK3 Black

The perfect balance of strength and weight
24% wider than the Arch EX for improved stability with larger tires
Same light weight as the Arch EX
Low-profile shape rolls faster, lasts longer, and helps stop tire pinch flats
25% stiffer and stronger for improved handling
Lighter and more durable rim shape and alloy
Most trusted tubeless system for easy setup and low maintenance
WideRight optimized for Trail tires  

Designed with input from our Enduro World Series teams, the new Arch MK3 is ready to own every trail
WideRight optimized for maximum stability with 2.25" to 2.5" tires, we expanded the internal width out to 26mm while keeping the rim incredibly light
The 27.5" Arch MK3 weighs only 425g
A proprietary alloy and stronger, low-profile rim shape means the new Arch MK3 is built to last
Featuring Bead Socket Technology, the Arch MK3 also offers the unmatched traction, control, and reliability only found on genuine Stan's NoTubes rims  

Internal Width: 26.0mm
External Width: 29.3mm
Depth: 16.0mm
Available in 32 or 28 hole
Drilling Style: Symmetrical
Material: 6069 Aluminum Alloy
Brakes: Disc only
Rim Weight: 406g
ERD: 542mm
ETRTO: 559x26.0
Color: Black
ISO: 26"x29.3mm
Tape: 27mm
Valve: 35mm Presta
Spoke Tension: 125kgf (1225N)
Max Rider Weight: 230lbs (104 kilo)
Max Pressure with 2.25" Tire: 39psi
Max Pressure with 2.5" Tire: 36psi  

BST TECHNOLOGY:
BST rims are designed to match the shape of your tire's bead to create a safer and more secure air tight interface
Bead Socket Technology rims are designed to match the shape of your tire's bead to create a safer and more secure air tight interface. Unlike the secure "socket" of a BST design, conventional rim shapes drive the bead of the tire down deeper into the rim, putting pressure on sidewalls that causes friction, restricts tire volume, and keeps the interface from forming a sufficient seal for tubeless use. BST rims secure the bead of the tire, not the sidewall, creating an air tight seal while allowing the tire's sidewall to expand to its true, rounder, more effective profile. The result is more traction and less rolling resistance. With lower-profile, less vulnerable sidewalls, our BST rims are also lighter and stronger by design, and accelerate more quickly  

WIDERIGHT TECHNOLOGY:
We all know the most important piece to the bicycle-terrain interaction is the contact patch between the tire and terrain, so tire profile and tire pressure play huge roles in bicycle performance and overall handling. But many rims just don't work well with the tires we're all using. Rims that are too narrow fail to offer sufficient sidewall support and protection to your tires and create a less stable shape. The result is less control in the corners, less traction on climbs, and more rolling resistance. Rims that are too wide also distort the tire profile, decreasing traction and control and driving impacts directly into the rim, negating the impact absorbing advantages of a tire's volume. Our WideRight rim widths are designed to strike the perfect balance between tire volume and sidewall function
Though its roots can be traced back to the original Flow and Crest rim designs, we officially began the WideRight design philosophy with the introduction of our carbon rim shapes. With our new MK3 (always pronounced Mark 3) series, WideRight expands to our aluminum rims.
WideRight rim profiles allow the tire to achieve its proper shape, and that's the foundation for a great handling, fast-rolling, and responsive bike.
Our WideRight system makes it easy to find the perfect rim width for the tire size and volume you ride. Too narrow of an internal rim mixed with a high sidewall design gives you a "light bulb" tire profile while an ultra wide rim on a narrower tire will give you a flat to "bell shaped" tire profile. Neither of these scenarios give optimal tire profiles nor allows the tire to perform as intended.
WideRight profiles provide the optimal volume without distorting the tread pattern or the side knobs so each part of the tire is in the correct position for rolling and cornering, allowing for maximum traction and control as well as offering minimal rolling resistance. The WideRight profile advantages don't stop there. Proper tire profiles not only allow for optimal tire performance but also allow the tire to do its secondary job of protecting the rim as well as the tire's sidewall. A flat or bell-shaped tire profile leaves the tire exposed to sidewall cuts and creates undue chances for rim damage  

Ride WideRigh recap:
-Optimizes tire profiles
- Maximizes traction
- Properly distributes tire volume
- Promotes the design intent of the tire profile and overall tire performance
- Reduces tire pinch flats and sidewall damage
- Allows tire to protect rim