Upgrade or replace your BMX or single-speed bike's freewheel with this Freeagent option. It's brand new, never used, and comes in its original packaging. You can choose from different tooth counts: 14t, 15t, 16t, 17t, 18t, 20t, or 22t—pick the gearing that suits your riding style. The finish is a sleek nickel color. It's compatible with all bikes (universal fit) and designed for single-speed setups. Part type: freewheel. MPN: 553010150. Whether you're building a custom bike, fixing an old one, or just want a different gear ratio for easier pedaling or more speed, this freewheel has you covered. Easy to install with the right tools (freewheel remover and wrench). Works on BMX, cruisers, fixies (if used as a freewheel), or any single-speed hub. Packaging may be non-retail if from the manufacturer. Check the seller's listing for tooth count selection. Get rolling with smooth, reliable engagement.