Ritchey WCS Zeta Wheelset - 700c 12 x 100mm/12 x 142mm Center-Lock XDR BlackThe Zeta Disc wheelset features new smooth rolling WCS forged disc hubs The rear hub sits the innovative Ratchet Driver system offers a 360 degree, 36 point engagement Tubeless ready extruded alloy rims Ritcheys pioneering OCR technology off center spoke hole drilling allows equal spoke tension throughout the wheel Wheels ship with pre installed Ritchey rim tape for easy set up With a 20mm inner width, these rims welcome tires between 25 and 45mm wide