Arch MK4 27.5" Rim
Arch MK4 27.5" Rim
Arch MK4 27.5" Rim

Stan's

Arch MK4 27.5" Rim

$129.00
SKU: RTA470002 Weight: 451 g
In stock
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Free Shipping $50+

Parts, apparel, and accessories

Free shipping on orders over $50 within the lower 48

Complete Bikes

Free Pro Pack Shipping on bikes over $3,500

Wheels & Wheelsets

Free Wheel Pro Pack Shipping

AK, HI, U.S. Territories & International

Shipping rates calculated at checkout

For complete details, including exclusions and shipping destinations, visit our Shipping Information page.

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Use your points toward future gear, upgrades, and trail essentials

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For complete program details, earning rates, and redemption information, visit our Rewards page.

Earn Rewards

Every ride deserves a little extra. With Fanatik Rewards, you'll earn points on qualifying purchases and redeem them for savings on future orders. It's our way of saying thanks for choosing Fanatik.

Join for Free

Create a Fanatik account and you're automatically enrolled

Earn While You Shop

Earn points on qualifying purchases online and in-store

Redeem for Future Savings

Use your points toward future gear, upgrades, and trail essentials

Unlock Higher Reward Tiers

Spend more and earn points faster with Bronze, Silver, and Gold status

For complete program details, earning rates, and redemption information, visit our Rewards page.

45-day Returns

We want you to be happy with your purchase. Most new and unused products can be returned within 45 days of purchase for a refund.

Eligible Returns
  • Most new and unused products
  • Original packaging and accessories included
  • Return requested within 45 days
Exclusions Apply
  • Final Sale and Outlet products
  • Custom-built bikes and wheel builds
  • Used products
  • International orders


For complete return details and instructions, visit our Returns page.

45-day Returns

We want you to be happy with your purchase. Most new and unused products can be returned within 45 days of purchase for a refund.

Eligible Returns
  • Most new and unused products
  • Original packaging and accessories included
  • Return requested within 45 days
Exclusions Apply
  • Final Sale and Outlet products
  • Custom-built bikes and wheel builds
  • Used products
  • International orders


For complete return details and instructions, visit our Returns page.

Price Match

Shop with confidence knowing you're getting a competitive price. If you find the exact same product advertised for less by another authorized U.S. retailer, submit a price match request and we'll review it.

Price Match
  • Identical product must be in stock and available for purchase
  • Competitor must be a U.S. based retailer
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  • If we lower our price within 30 days of your purchase, you may be eligible for Fanatik store credit
  • The same model, size, and color must be in stock at the lower price

For complete eligibility requirements and exclusions, visit our Price Match & Protection page.

Price Match

Shop with confidence knowing you're getting a competitive price. If you find the exact same product advertised for less by another authorized U.S. retailer, submit a price match request and we'll review it.

Price Match
  • Identical product must be in stock and available for purchase
  • Competitor must be a U.S. based retailer
  • Product details and advertised price must be verifiable
Price Protection
  • If we lower our price within 30 days of your purchase, you may be eligible for Fanatik store credit
  • The same model, size, and color must be in stock at the lower price

For complete eligibility requirements and exclusions, visit our Price Match & Protection page.

Highlights

  • 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

Description

Mountain bikes have changed in the decade since the original Arch rim helped introduce the world to tubeless technology. With a 28mm wide asymmetric rim shape and ultra-strong 6069 alloy, today's Arch MK4 rim has evolved to match these more capable bikes. Through all the years of testing and refinement of this rim, one thing has never changed: versatility. Now more than ever, when you want a reliable rim that can handle every trail, the Arch MK4 is for you.

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.

The Arch MK4's BST Asymmetric shape improves spoke angle, allowing for a stronger overall wheel build. Unlike most asymmetric rims that struggle with tubeless inflation and consistent airtight seal under hard cornering, the Arch MK4's shape is designed to equalize pressure for easy inflation and incredibly strong tire retention on both sides of the rim.

Stan's patented Bead Socket Technology, combined with a stronger asymmetric design, light and durable 6069 alloy, and the perfect rim width for balancing control and weight, make the Arch MK4 your best choice for all-around riding. Powering up rocky switchback climbs or slapping berms on every descent, the Arch MK4 is ready for whatever you can throw at it.