Bicycle Water Cup Holder Base 33.9mm Aluminum Alloy Bottle Cage Mountain Bike Adjustable Conversion BaseRed

Feature: 1. Seat Tube Installation: Clamp ring diameter: φ33.9mm suitable for folding seat tubes. 2. Durability Base: Processing by CNC 6061, with good finish, strength, lightness and durability. 3. Bicycle Application: Suitable for mountain bikes and folding bicycles, use with water bottle holder. 4. Water Bottle Rack Adapter: This adapter provides a good base to mount your water bottle rack on a bicycle. 5. Adjustable Design: You can adjust the position of your cup holder, which is convenient for use in various situations. Specification: Item Type: Water Cup Holder Clamp Ring Diameter: Approx. φ33.9mm 1.33in, Suitable for Folding Seat Tubes Material: 6061 Aluminum Alloy. Package List: 1 x Clamp Ring1 x Bracket1 x Screw1 x Wrench1 x Accessories