Zipp 808 nsw carbon clincher road wheelsetthe zipp 808 nsw clincher is designed primarily for triathlon and time trial events or any cyclist looking for increased speed and stability with greater aero dynamics and reduced side force this wheel makes acceleration and maintaining speed easy features hub modelcognition rim outer width26 4mm rimx82nsw rim depth82mm spokessapim cx ray spoke hole count18h front 24h rear spoke patternradial front 2x rear spoke length drive side2