The Topeak QR CageMount II (Art No. TQCM02) provides a fast, tool-free solution for switching between water bottle cages and range extender cages. Constructed from durable engineering-grade polymer, this quick-release base allows riders to remove or replace cages instantly without unscrewing bolts-perfect for E-bikes, touring, or multi-bike setups. The mount includes one base plate and two adapters for seamless compatibility with both standard water bottle cages and Mahle-type range extenders. Compact and lightweight at just 32.6 g, it offers a clean, integrated look while simplifying maintenance and customization. Quick-Release System: Enables fast switching between bottle cages or range extenders without tools or unscrewing bolts. Versatile Mounting: Works with both standard water bottle cages and e-bike range extender battery holders. Durable Design: Made from engineering-grade polymer for strength and long-term reliability. Lightweight Construction: Weighs only 32.6 g with a compact 10.9 x 9.5 x 4.4 cm profile for a clean, low-profile fit. Complete Kit: Includes one base plate and two adapters for easy installation across multiple bikes or cage types. Manufacturer Sku: TQCM02Todson Sku: 66008302