Truthfully, about a third of new bikes straight out of the box would display hanger alignment issues, which were then carefully rectified. In fact, IвЂ™ve worked in shops where the policy was to check every single new bike sold, and any quality bike being serviced. However, as cassette sprocket spacing has gotten tighter, and frames have become lighter, such a tool has become all the more common to use. A derailleur hanger tool is not only extremely useful for diagnosing that your hanger is, in fact, bent, but also making it straight once again.Дave Rome investigates the options when it comes to derailleur hanger tools.ДЄ hanger tool was previously thought to be a shop-only item, especially as it only requires occasional use. Best ruin a replaceable piece of aluminium than write off an expensive derailleur, or worse, the frame.Дerailleur hangers are designed to be sacrificed but that also means theyвЂ™re prone to bending, which manifests as dodgy and inconsistent shifting that no amount of cable-tension adjusting, limit-screw fiddling or chain cleaning will solve.

The rear derailleur sits in a precarious position and so the little hanger itвЂ™s bolted to is commonly designed as a weak point. Sticking out in the wind, controlling your rear gears and just waiting to be bent.

Xtools pro 5.2