So I've got a rear wheel, Ultegra 9 hub, Mavic CPX23 28 hole rim, 2x, that is out of round and the rim needs replacement. Being the cheapskate that I am, I'd like to replace just the rim and salvage the spokes. But I can't find any data for the CPX23 rim to determine what other Mavic rim might replace it. Anyone know if the Mavic CPX33, CPX22 or another similar rim is equivalent in spoke length to the CPX23. Thanks.