- Tubeless ready with rim tape and valves installed
- 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
- Neo hubs accelerate quicker and last longer
- Most trusted tubeless system for easy setup and low maintenance
- Sapim Secure Lock aluminum nipples
- Available for SRAM XD and Shimano HG cassettes
- Available for all current axle systems, including Cannondale Lefty SL, Lefty Supermax, SRAM Predictive Steering, and Boost 110mm and 148mm spacing
- WideRight optimized for 2.25-2.50 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 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, ontrol, and reliability only found on genuine Stan’s NoTubes rims.
Arch MK3 wheels include pre-installed tape for tubeless use and presta valve Technology WideRight
- Our WideRight profile increases tire volume without negatively affecting tread shape or sidewall height.
- BST rims are designed to match the shape of your tire's bead to create a safer and more secure air tight interface.
- Our race-proven Neo hubs with Durasync & Neo Ultimate hubs with Speedsync offer the durability and faster engagement to handle today's most difficult trails and more aggressive riding style.
The difference between 20x110mm thru-axles and 20x110mm BOOST thru-axles explained
- Rim Internal Width: 26.0mm
- Rim External Width: 29.3mm
- Rim Depth: 16.0mm
- Spokes: Sapim Force Black 2.0/1.7/1.8mm
- Nipples: Sapim Secure Lock Alloy Black
- Hub: Neo with Durasync
- Hole Count: 32-hole, 32-hole
- Rim Material: 6069 Aluminum Alloy
- Rim Color: Black
- Hub Color: Black
- Brakes: Disc Only
- Valve: 35mm Presta
- Rim Weight: 406g (26") / 425g (27.5") / 453g (29")
- Wheel Weight: 1633g (26) / 1684g (27.5") / 1757g (29")
- Front Wheel Weight: 756g (26") / 781g (27.5") / 818g (29")
- Rear Wheel Weight: 877g (26") / 903g (27.5") / 939g (29")
- ERD: 542mm (26") / 567mm (27.5") / 605mm (29")
- ETRTO: 559x26.0 (26") / 584x26.0 (27.5") / 622x26.0 (29")
- ISO: 26"x29.3mm / 27.5"x29.3mm / 29"x29.3mm
- Tape: 27mm
- Max Spoke Tension: 125kgf (1225N)
- Max Pressure with 2.25" Tire: 2.6 Bar (39psi)
- Max Pressure with 2.5" Tire: 2.4 Bar (36psi)
- Max Rider Weight: 104Kg (230lbs)
In the bike industry's never-ending quest to make nothing compatible with anything else, there are now two types of 20mm through axle systems: 20x110mm and 20x110mm Boost. Yes, really. But it's going to be OK. Let's go through this and help make sense of it together. Does this even apply to me?
XC and Trail bikes get a pass on this one. If your bike uses a 15mm axle, as nearly everything outside of a full blown DH bike does, you can go back to watching videos on Pinkbike. Nothing to see here. But if you currently have or intend to purchase a DH fork or heavy duty single-crown fork with a 20mm through axle, or a wheelset for such a fork, the next few minutes of reading will hopefully save you some heartache and return shipping costs.
As we write this in late July, 2018, many fork manufacturers are beginning to move their disc brake mount location outward, making their forks compatible with "20x110mm Boost" hubs. Total spacing between the fork legs is still 110mm, and the axle diameter is still 20mm, so what does the "Boost" mean here? The difference is disc brake rotor placement and flange width, where the spokes attach to the hub. Although both hubs measure 110mm wide, the boost version features hub flanges that have been moved out 5mm to each side, which also pushes the disc mount closer to the fork. You can see this difference in the photo we have to the left. The goal of widening the hub flanges is to create a better bracing angle for your spokes and in turn a stronger wheel. These wider hub flanges mean the new 20x110mm Boost hubs have shorter end caps, and a whole different hub shell with wider flanges and a wider disc brake mount location. So a traditional 20x110mm (non-Boost) hub can't be truly be converted to 20x110 Boost with just something like a simple end cap swap.