Duroc 50s are 50 external and either 46 or 47 internal. Looked at these when I went 29+ and this is a great price.Rim width?
+1PSA...This seller takes care of his stuff. The bike he gave me for free was in better shape than ones I've seen folks sell for stupid money. If I needed any of the parts he has currently listed, I'd not hesitate to buy .