Stan's NoTubes ZTR Alpha 340 Rim

Stan's 359g ZTR Alpha 340 is the first road rim manufactured by the inventors of the Stan's NoTubes Tubeless System. The ZTR Alpha 340 is compatible with tubeless tires and when used with NoTubes rim tape and the included 44mm Alpha valve (plus a bit of latex-based sealant), the rim provides the foundation of a very light and reliable tubeless wheelset.

The Alpha 340 receives the first implementation of Stan's next-generation BST (Bead Socket Technology). BST is a proprietary, patented design feature which incorporates an inner curve that is the same size and shape as the tire bead to create a tighter tubeless seal and reduce strain on the tire bead.

The ZTR Alpha 340 has a wider inside rim cavity with shorter sidewalls, which means improved tire performance at equivalent pressures as well as decreased pinch flats. With these short sidewalls, the tire should not hit the rim and pinch flat. This design will allow you to run lower pressures and use 4mm more of the tire than ever before.

Can be used with or without tubes by using the Stan's Yellow Rim Tape and Stan's 44mm Universal Road Valve Stem.

Additional information:

• Weight: 359g
• Rim depth: 22.6mm
• Rim width: 20mm
• Includes: 44mm Alpha valve
• Color: black
• Hole count: 20, 24, 28, 32
• ERD: 594 (Wheelbuilder.com verified)

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