55% Polyester

without a top guide you risk dropping your chain over rougher terrain

Tech 3 V4 Tech Specs:

Simply put

Weight: 68g

Wolf Tooth B-RAD Double Barrel Bottle Cage Adaptor PDP|Colour 55% PolyesterB RAD (Be Rad), Bottle Relocation and Accessory Device, is an innovative and extremely flexible system for organising on bike bottle and accessory storage using bottle cage mounts. The system requires the use of the B Rad mounting bases, available separately. This product page is for the side by side bottle mount. Included are two Double Bottle adapter mounts and associated hardware. Compatibility: REQUIRES the use of a B RAD base and usually the B