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.

• 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

Specifications

• Diameter: 26" // 27.5" // 29"
• ERD: 536mm // 561mm // 600mm
• Internal Width: 30mm
• Outer Width: 33.6mm
• Height: 18.9mm
• Offset: 3mm
• Hole Count: 28 // 32
• Material: 6069 Aluminum
• Valve: Presta
• Weight: 466g (26") // 487g (27.5") // 521g (29")
• Item #: RTA470001 // RTA470002 // RTA490001 // RTA490002
• UPC: 847746058427 // 847746058434 // 847746058441 // 847746058458