Originally Posted by BlastRadius
Actually the 50/28 crank shown doesn't have the 110bcd of the typical compact cranks today.
About 2/3rds of the way down the page of the URL you posted, a table shows the BCD and smallest chainring that will fit that bolt pattern.
yup...that crank is not a typical CC...the typical CC 110bcd can only get down to 33t...and the 50/28 is really set up as a single ring with a small range to bail out on as that crank was matched with a short bb...