Upgrading to a set of quality tubeless wheels is the number one way to improve the ride of your XC or Gravel bike. Tubeless offers more comfort and control with less rolling resistance, and when it comes to tubeless, nothing beats the easy inflation and performance of Stan&';s patented Bead Socket Technology. First introduced over 15 years ago, the original Crest rim design with BST helped launch the tubeless revolution. Today&';s Crest S2 wheels offer quick and easy inflation, the legendary airtight seal, and a 25mm width that offers incredible stability for 40mm to 2.3" Gravel and XC tires. 25mm rim width optimized for Gravel and XC tires up to 2.3" 6061 aluminum with sleeved joint and stainless steel rim eyelets Patented BST low-profile rim shape for easy tubeless inflation and the most reliable seal Matched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceability E-sync hubs feature Enduro bearings with double-row freehub bearing and cromoly axle offer 47% increase in max torque capacity over Neo hubs Connection program includes 3-year E-sync hub warranty, 3-year S2 rim warranty, 1-year crash replacement, and $10 donation to trail maintenance or advocacy group of your choice Tubeless tape installed, requires additional valve stems