Stan's No Tubes Arch MK3 Rim

Stan's Arch Mk3 Rim

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 new proprietary alloy and stronger, low-profile rim shape means the new Arch MK3 is built to last. Featuring Bead Socket Technology, the new Arch MK3 also offers the unmatched traction, control, and reliability only found on genuine Stan’s NoTubes rims.


  • 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 2.25”-2.50” Trail tyres


  • Rim Internal Width: 26.0mm
  • ETRTO: 559x26.0 (26”) / 584x26.0 (27.5”) / 622x26.0 (29”)
  • Rim External Width: 29.3mm
  • ISO: 29.3mm
  • Rim Depth: 16.0mm
  • Tape: 27mm
  • Hole Count: 28-hole or 32-hole
  • Valve: Presta
  • Rim Color: Black
  • Max Spoke Tension: 125kgf (1225N)
  • Material: 6069 Aluminum Alloy
  • Max Pressure with 2.2" Tire: 39psi
  • Brakes: Disc only
  • Max Pressure with 2.5" Tire: 36psi
  • ERD: 542 (26”) / 567 (27.5”) / 605 (29”)
  • Rim Weight: 406g (26”) / 425g (27.5) / 453g (29”)
We offer free shipping on all orders over £20. Shipping on orders under £20 is charged at £1.95. You should expect to receive your order in 2-3 working days. If your order is urgent you can select a faster or next-day delivery option at the checkout. UK orders are posted with Royal Mail, Hermes or Parcelforce. If you have a specific delivery requirement please contact us and we will do our best to accommodate you. For further information please see our Delivery Information page
If you are not completely satisfied with your goods you may return them within 60 days for a full refund or exchange. All items returned must be in 'as new' condition and be complete with their original packaging. Please make sure the packet is packaged well and do not stick anything directly to the item's packaging which could damage it. For further information please see our Returns Information page
Product Features
  • Colour: Black

Item: STAR1

MPN: 850.RTAT70009

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