Description With clean lines and rugged construction, Planet Bike&';s Aluminum water bottle cages offer lightweight durability. Pick a color that&';s right for you and stay hydrated when you&';re out on the road! Specs Constructed with 6061 6.2mm aluminum Weight: 63 grams Compatibility Compatible with Aventon electric bike models that have bottle cage mounts on the frame. Most bicycles will have bottle cage mounts on the downtube and/or seat tube of the frame. Other models will require this adapter here.