Theory American to Mid Bottom Bracket Cup Set - Aluminum - Dark Blue Sz 11.5 Rear Derailleur: Shimano RD-M6100 deore

Rear Derailleur: Shimano RD-M6100 deore 12 speed

The SNAFU Magical Bars are two piece handlebars constructed from 4130 heat-treated chromoly with a 20mm crossbar that tapers to 15mm in the center to help save weight in all the right areas without sacrificing strength

Use: Micro BMX Race

Each bottom bracket is hand assembled using a hollow chromoly spindle

It comes with an 18t cog and hardware(driver

Theory American to Mid Bottom Bracket Cup Set - Aluminum - Dark Blue Sz 11.5 Rear Derailleur: Shimano RD-M6100 deoreThe 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