Sprockets chain sprocket

Discussion in 'Transmission / Drivetrain' started by pianoman8t8, Jan 28, 2007.

  1. pianoman8t8

    pianoman8t8 Guest

    Does anyone know what the bolt circle dia or radius is for the 9 hole pattern chain sprocket? like if i found center of the sprocket, and i wanted to go out the radius of the circle, which would put me dead-center of one of the 9 holes in the sprocket. Does this make any sense to any one?

  2. etheric

    etheric Guest

    You got it right, it's generally refered to as BCD, Bolt Circle Diameter.
    Sorry, I don't know off hand.