The Arch MK4 rim is light enough to take XC racing but was born from research and testing on the Enduro World Series circuit making it a great rim for anyone looking to improve both descending and climbing. Constructed of light and strong 6069 aluminum alloy with a reinforced spoke bed and 28mm internal width ideal for 2.2-2.5" tires the Arch MK4 can get you up the climbs easier and make the descent even better. Utilizing Stan's patented Bead Socket Technology combined with a stronger asymmetric design for balancing control and weight the Arch MK4 your best choice for all-around riding.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 3-year rim warranty with 1-year crash replacement
| Brake Compatibility | Disc Only |
| Rim Width (External) | 31.4 |
| Rim Width (Internal) | 28 |
| Brake Track | None |
| Manufacturer Spec ERD (mm) | 561 |
| Valve | Presta |
| Valve Length | Short 32-40mm |
| Color | Black |
| Weight | 451 |
| Wheel Size | 27.5" |
| Defined Color | Gray |
| ISO Diameter | 584 / 650b / 27.5" |
| Eyelets | None |
| Hub Drilling | 28 |
| Rim Joint | Welded |
| Rim Depth (mm) | 18.9 |
| Rim Material | Alloy |
| Tire Type | Tubeless Ready |
| Rim Center Offset (mm) | 2.5 |
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