Constructed of 6061 aluminium with a reinforced spoke bed and eyeletted spoke holes for strength, the Crest S2 rim from Stans is built to last. The wheelset also features fast-engaging E-sync hubs designed to handle the added weight and forces of eBikes and more aggressive riders. Thanks to cromoly axles, heat treated steel ratchet rings, double row Enduro bearings, and a pawl design that reduces stress on bearings, E-sync hubs are made to roll smoother for longer.The 25mm rim width is optimized for Gravel and XC tires up to 2.3 inches. With its patented BST low-profile rim shape, these wheels are easy to set up tubeless and provide a reliable seal. The rims are made of 6063 aluminium with a sleeved joint and stainless steel rim eyelets.The matched wheelsets use traditional J-bend lacing and share a single spoke length for easy serviceability. The E-sync hubs offer fast 8.18° engagement with reinforced pawls for durability. The Enduro bearings with double-row freehub bearing and cromoly axle provide a 47% increase in maximum torque capacity compared to Neo hubs.When you purchase this product, you are eligible for the Connection program which includes a 3-year E-sync hub warranty, a 3-year S2 rim warranty, a 1-year crash replacement, and a $10 donation to a trail maintenance or advocacy group of your choice.Upgrade your bike with the NoTubes Crest S2 Wheels 6B - 29 from Stans and experience enhanced performance and durability on your rides.