Stan's NoTubes Arch MK4 Rear Wheel
Best durable wheel for aggressive trail riding.
This wheel strikes a rare balance between trail-ready durability and the kind of low-drag efficiency usually reserved for race gear. While it lacks the absolute stiffness of carbon fiber, the asymmetric design and magnetic pawl engagement offer a reliable, easy-to-service ride that handles aggressive terrain without feeling sluggish.
$527.00
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Who it's for
- Aggressive trail riders seeking a dependable and strong rear wheel.
- Riders prioritizing quick, hassle-free tubeless tire installation and reliability.
- Mountain bikers needing a versatile wheel for varied trail and all-mountain adventures.
Who should skip it
- Cross-country racers focused on shaving every possible gram from their bike.
- Performance-oriented riders desiring instant power transfer from high-end hubs.
- Budget-conscious riders seeking the absolute lowest cost for a replacement wheel.
Performance breakdown
Tubeless Setup Ease
The BST-Asymmetric design makes seating tires nearly effortless and incredibly reliable.
Hub Engagement Speed
M-pulse magnetic pawls deliver snappy, instant power transfer on technical climbs.
Structural Durability
6069 aluminum construction balances lightweight agility with impressive trail-ready toughness.
Maintenance Simplicity
Single spoke length simplifies repairs and keeps your wheel running longer.
Bearing Performance
Enduro bearings provide smooth, consistent rotation through harsh, demanding conditions.
Tire Platform Stability
Optimized internal width creates a secure, predictable shape for aggressive cornering.
Key Specs
Wheel Size
29 inches
Wheel Position
Rear
Material
6069 aluminum
Internal Rim Width
28 mm
Axle Type
12mm Thru-Axle
Rear Axle
12mm Thru x 157mm
Hub/Brake Compatibility
6-Bolt Disc
Brake Type Compatibility
Disc Brake 6-Bolt
Cassette Body Type
SRAM XDR
Hub Compatibility
SRAM XD/XDR
Know before you buy
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