Theory American to Mid Bottom Bracket Cup Set - Aluminum - Gold 25t and Campagnolo systems in mind

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

Material: Carbon Fiber Construction

These are a great value for anyone looking to replace or upgrade their existing wheels

A new saddle should be treated with Brooks Proofide leather dressing to help assist the 'breaking-in" process

and reliability

Theory American to Mid Bottom Bracket Cup Set - Aluminum - Gold 25t and Campagnolo systems in mindThe 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