Sunlite European BB
Sunlite European BB. BB SET SUNLT SL26 68 SQ STL-CUP ENG SEALED BRG. BMX Racing Square Taper Bottom Bracket. The BB also works with many other typed of bikes like road and mountain. 73 BB width also available. If your BB frame shell measures 68mm order 68mm. Measure your old axle length to get your axle width like 113mm for example.