Blackburn's lightest bottle cage ever, the Carbon Road Water Bottle Cage has an elegant and sleek design with a firm grip to keep your bottles cinched down. FEATURES: UD Carbon Fiber - Uni-Directional carbon fiber material allows for maximum strength and minimal material for ultimate weight savings Bottle Retention - There is nothing worse than looking down at your bike and realizing that you have one less water bottle than you started with. Blackburn cages are vigorously lab and field tested at each stage of the development process to ensure that your water is safely held to the bike. Two mounting bolts included Dimensions: 5.51 x 3.07 x 3.07" (140 x 78 x 78mm)