This sleek and lightweight Bontrager Speed Concept 9-Series Carbon Seatpost is the perfect upgrade for your time trial or triathlon bike. Crafted from high-quality carbon material, it ensures durability and reliability for your long rides. The aero design of this seatpost with its 275mm x 50mm size offers a comfortable riding experience with maximum speed. This seatpost is compatible with a variety of bike types and brands, including Bontrager. With its easy-to-install feature, you can easily replace your old seatpost and enjoy the enhanced performance of your bike. Take your cycling experience to the next level with this top-of-the-line Bontrager Speed Concept 9-Series Carbon Seatpost.