As successor to the grand tour and world championship winning TT kit, the Crono CX takes aero performance to the next level Fully UCI legal for use in sanctioned time trials as well as triathlons Jossa membrane cap for fast and easy drinking in race conditions Unidirectional monocoque carbon fibre cage holds the bottle close to the frame for optimum aerodynamic performance and low weight Weight: 89 grams +/- 5 %