Zipp 808 firecrest tubular road wheelsetthe zipp 808 firecrest deep rim section has excellent aerodynamic properties whilst also handling crosswinds like you would expect a much shallower wheel to achieve the wide rim profile provides efficient power transfer comfort and durability making it an excellent choice for any terrain and riding style features hub model77 front 177 rear brake track width26 04mm axlequick release rimcarbon tubular rim depth82mm spokessapim cx sprint spo