【Wide Compatibility】Designed to fit 49cc, 60cc, 66cc, and 80cc motorized bicycle engines, this chain tensioner is a reliable replacement or upgrade for most gas-powered bikes
【Durable Construction】Crafted from sturdy metal and high-quality nylon, the tensioner features excellent heat resistance, toughness, and fatigue resistance — built to perform in tough and humid environments
【Smooth & Safe Operation】The nylon guide wheel keeps the chain running smoothly, reduces sprocket wear, and prevents derailment — ensuring stable and long-lasting chain performance
【Easy Installation】Comes with 1x chain tensioner bracket and 2 x 8mm nylon guide wheel. Pre-assembled design makes installation quick and hassle-free for most users
【Secure Packaging】Ships in protective packaging to ensure your parts arrive safely. Backed by quality you can trust — ideal for bike builders and daily riders alike