The Granite Portaledge Bottle Cage Mount Strap System turns your unused bottle-bosses into a lightweight, rock-solid, and kind-on-paint stash for your essentials. With room for a tube, CO² and tyre levers it guarantees you’ll never be left stranded on the trails.Making use of your standard bottle-bosses, Portaledge weighs just 40g and is made up of a tough AL6061 alloy plate with 30mm silicone-coated hook and loop strap.Portaledge will lock your gear in place through the roughest trails and toughest conditions.Granite Portaledge Bottle Cage Mount Strap System FeaturesPortaledge weighs just 35g, meaning it won't hold you back.With room for a tube, CO² and tyre levers it guarantees you’ll never be left stranded on the trails ... More info