Stans Arch 27.5/27mm id, sapim tapered spokes, brass nipples. tubeless. red hope pro-4 hubs. standard spacing. Nobby nick tires 2.35, Shimano 180/160 brake disks. hub endcaps 15/12mm axle. All brand new January 2018. I have about 8-10 rides on them. sold the bike. These are complete ready to ride wheels. built by wheel builders.com