Granite Portaledge Strap MountPortaledge 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 youll 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