What it does: Securely mounts a brazeon front derailleur to frames that lack a builtin mount, so you can use a brazeon derailleur on a clampstyle seat tube. Key benefits: Restores compatibility: Works with brazeon front derailleurs so you can fit higherperformance or replacement derailleurs to your frame. Reliable shifting and alignment: Holds the derailleur in a stable position to maintain accurate front shifting under load. Framefriendly clamping: Wide band design distributes pressure evenly around the seat tube to reduce the risk of marks or damage. Durable, lightweight construction: Made from aluminum alloy for longlasting use while resisting erosion from moisture and trail elements. Compatibility and size: Fits seat tube diameters 31.8 mm and 34.9 mm for a versatile fit across bikes, including road bikes. Designed specifically for front derailleurs (brazeon type) and to function with a range of derailleur models. Materials and performance: Aluminum alloy build for strength and low weight. Wide band clamp gives a consistent hold during intense rides and better pressure distribution compared with narrow clamps. Corrosionresistant finish helps protect against wetweather and trail exposure. Typical use scenarios: 1. Converting a frame without a brazeon mount so you can install a brazeon front derailleur for improved shifting. 2. Replacing a worn clamp on a commuter or road bike to restore precise front shifting and secure alignment. 3. Upgrading a bike used in mixed conditions (wet roads, muddy trails) where corrosion resistance and a firm clamp are important. Quick notes: Intended for front derailleur applications only. Choose the clamp size that matches your seat tube (31.8 mm or 34.9 mm).