Description： Brand: ZOOM Model: DB-680 Name: Double-acting disc brakes 【Bilateral bearing actuation/adjustable on both sides】 Application: Mountain bike disc brakes, road bike disc brakes, BIRDY/small discount modification! Weight: about 230 grams for a single brake It is an advanced wire-controlled disc brake! The feel and quality surpass BB7 finally a mechanical disc brake that offers superior performance and is a nod to put in place. The 680 zoom is a double-sided mechanical where both blocks operate offering yet and precise clamping force. this translates into even pad wear and, with the addition of a simple barrel adjuster, the mat can be adjusted easily and hassle free. no frustration at completely adjusting the entire stirrup, only to have it continue to slide the fixed side, addin.
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