Designed specifically for saddle carrier mounting, the Tri-Cage is made from an engineering grade polymer and the easy access “forward-release” design helps prevent accidental drops when reaching back for a bottle. An integrated bottom mount for Ninja T Road tool case, Ninja CO2 inflator, or Ninja Pouch Road spare tube carrier makes it easy to carry the essentials while the included tire levers round out the package. Holds bottles up to 750cc.*Recommended bottle diameter 72mm - 74mm