Theory American to Mid Bottom Bracket Cup Set - Aluminum - Dark Blue Adult Trike 125 (305mm) tires

125 (305mm) tires

and practicality in mind

Fork: Aluminum Blades

Box One Fork Adapters let you run standard 10mm (3/8" axles) in a fork designed for 20mm axles

Theory American to Mid Bottom Bracket Cup Set - Aluminum - Dark Blue Adult Trike 125 (305mm) tiresThe Theory Bottom Bracket Cups allow you to use a mid size sealed bearing bottom bracket in an American size frame. They are made out of anodized 7000 series aluminum. These are made to fit 50. 8mm frames and 41. 2mm OD bearings. Color: Dark Blue Note: This part was colored by anodizing, which is a method of coloring metal. Color differences do occur among manufacturers and even among batches from the same manufacturer. This is not a flaw or