Stan's NoTubes Crest MK4 Rim - 27.5 Disc Black 32H. The Crest MK4 combines the heritage of Stan’s legendary tubeless design with today’s best materials and a stronger asymmetric design. The BST Asymmetric rim design allows for a stronger wheel while offering the easy inflation and Stan’s trademark unmatched airtight seal. The Crest MK4 rim is optimized for 40mm Gravel tires and up to 2.3” mountain tires making it a great versatile choice for a wide range of bikes and riding styles.

25mm rim width optimized for Gravel and XC tires up to 2.3”

Light and 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

3-year rim warranty with 1-year crash replacement