Theory 19mm Mid BMX Bottom Bracket Kit - Blue 4.0 Width: 5-1/4"

Width: 5-1/4"

They work with most any 16t or larger freewheel (not included)

high-volume tire has been specifically engineered to offer maximum rolling speed and to provide reliable cornering control during urban riding

These high class valve caps are made from sustainable glossy translucent green acrylic

jersey clip

Theory 19mm Mid BMX Bottom Bracket Kit - Blue 4.0 Width: 5-1/4"The Theory 19mm Mid BMX Bottom Bracket Kit includes sealed bearings, anodized cone spacers, bottom bracket spacers, and a tube spacer. Color: Blue 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 imperfection, but it is inherent to the anodizing process. We make every effort to show accurate