Theory

A standard presta valve 700c inner tube. Specs: 700 x 35 - 43c (38mm valve)

The Theory American Bottom Bracket Kit includes 2 precision sealed bearings, press-in American BB cups, internal spacer, drive and non-drive side d...

Theory American BB Cups: The Theory American Bottom Bracket Cups allow you to use any sealed Mid BB (19, 22 or 24mm) in any American bottom bracket...