The RD23 chain tensioner is a bike part designed for folding-style bikes, offering a compact and practical solution for folding bike drivetrain setup. Its straightforward design makes it suitable for riders who want a dedicated component that matches the needs of a folding frame. Used as a chain adjuster, it helps maintain proper chain tension during daily riding and when the bike is folded or unfolded. That can make routine handling feel more consistent, especially for commuters and riders who rely on their folding bike for short city trips. Made from aluminum alloy, this chain tensioner uses a lightweight metal construction that keeps the part sturdy without adding unnecessary bulk. The 92 grams weight supports the idea of a lightweight chain tensioner that fits well with the compact nature of folding bikes. The package includes the chain tensioner body and 2 mounting screws, so the main hardware needed for installation is provided as a set. For a folding bike chain tensioner, that simple component set keeps the focus on function, fit, and clear mechanical setup.
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