Standard bottom bracket set for one-piece cranks and also for various 3-piece crank sets.
Right hand thread on right hand cone, left hand thread on left hand cone. Press-fit cups into large diameter bottom bracket shell. The bottom bracket shell is the traditional "American" bottom bracket, and has an outside diameter of approximately 56mm. (Will vary slightly between frames as it's the inside diameter that's constant.) Cone threads: 24tpi. Weight: 292g.