suntour is good but it's either heavy or it wears out unless it's superbe and then it's too expensive. Post '85 shimano is the way to go.. late 80s and early 90s shimano 600/105 is great stuff. That goden arrow group in the for trade is pretty snazzy and I think way nicer than 600 arabesque. Especially the RD... but honestly late 80s shimano is the way to go for cheep prices and good function.