Theory American to Mid Bottom Bracket Cup Set - Aluminum - Gold 25t It has a pinned seam

It has a pinned seam and is drilled for a standard Schrader valve

Material: Carbon Fiber Construction

This tire will only fit 406mm rims and has a pressure rating of 100psi

ERD: 493mm

and Campagnolo systems in mind and will meet the most demanding requirements

Theory American to Mid Bottom Bracket Cup Set - Aluminum - Gold 25t It has a pinned seamThe 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: Gold anodized 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