The bike is pretty much done except for the temporary saddle, pedals, and Shimano 105 shifters. I ordered a set of Shimano 600 shifters but they weren't working properly so I installed the 6 speed 105's with a 7 speed freewheel. I couldn't get them to shift properly to the 7th gear without it messing up the other gears, so I just turned in the limit screw to keep at at 6 speeds. Does anyone have a set of 600 tri-color shifters they'd be willing to sell? I'd take 6400 or 6401 DT shifters, 600 brifters, or 600 bar-end shifters.