The Topeak CageMount 2 (TCM02) adds hydration flexibility to any bike by allowing secure bottle cage mounting on handlebars, seatposts, or frame tubes—no tools required. Built from durable engineering-grade polymer with a reinforced steel band, this adapter provides a firm grip on tubes measuring 22–38 mm in diameter. Ideal for bikes without traditional cage bosses or for long-distance riders seeking extra water capacity. Compact and lightweight at only 43 g with dimensions of 8.5 × 6.5 × 2.4 cm, it installs quickly and stays securely in place through every ride.