I have an old cannondale 3.0 with a RX100 crank. I took the dustcap off and the 14mm bolt, but when i took the bolt out there was no square tapered hole behind it, just a long threaded hole for the bolt. Ive never seen this before, and am not sure how to go about removing the crank arm. Before i go any further can someone tell me how to do this? my crank pulled has a little piece that attached to the tip that is a larger circular piece. So if im thinking about this correctly perhaps i use that attachment, and use the crank puller just like i would on a square tapered crank?