Originally Posted by
FBinNY
You're looking for a 700c (622) wheel with a threaded freewheel hub (not freehub).
These are older, having largely been replaced by freehubs, so your choices may be limited. The one important variable is the axle width, most likely 126 or 130mm.
You then need to review the rim choices, looking for one similar to yours, but this isn't critical. You will also have choices between bolt on or QR. Either if fine, so it's about preference and price.
The Cannondale Quick 8 is a modern bike from the last 8 to 10 years. Freewheel hubs are being widely used in modern bikes with 135mm OLD as a “cost saving” measure. ‘Tis dumb but…