https://www.ebay.com/itm/Shimano-105...item1ccc55eb9e
riding_is_life. Copy and post the link and it works. I clicked on the same set up I purchased, price comes up $549.99 and 59.99 shipping. I brought up my purchase history, purchased back in Feb. and it was 459.99 including shipping.
170mm, 50/34, 11-32 and GS derailleur.