Greetings, those that know more than I, very interesting Sportster frame up on ebay right now, seller thinks its a 57, the date stamp is 6L which would be right and it has the tabs below the seat for an XL I believe which would also be right.Seller also says however that the casting code on the neck is a -58 code, which I thought was right for 58 and on, so thought a 57 would have a lower number year code?
Nice frame minimal work to bring it back to pristine, bid is just over $200 now, it ends in 19 hours
Heres the link have a look
https://www.ebay.com/itm/6-L-EARLY-4759 ... 1438.l2649