Stan's No Tubes Flow MK4 Rim

* Low-profile 30mm internal width optimizes tire shape, traction, and control for 2.3-2.6'' tires* 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* Reinforced spoke bed, combined with the offset drilling of the asym design, builds into an incredibly durable wheel that brings added confidence to every ride.