Originally Posted by
unoudid
I upgraded my brakes from Tektro to 105 with my bike purchase (Giant Defy 1). The shop gave me MSRP of the tektro brakes for trade in value. The 105's ended up running me ~$95 to upgrade with free installation. Not the best deal but better than nothing.
I would also check to see if your LBS would hook you up from the Tektro's to 105's. I did similar to unoudid and had my LBS upgrade my crankset and brakes to 105 from the gossamer and tektro and he only charged me $75 installed for the swap.