Thank-you for the terriffic responses. I am very new to forum posting but have been a lurker for over a decade. This bike is Shimano 600 S.I.S. complete but for a generic headset. The tires are Continental Gatorskin rear and Continental Ultrasport front hence the dissimilar appearance. The bars have been upgraded to Modolo Ergos and the chain wheels have become Stronglight 54 35. I put 10 miles on it yesterday and preferred the supple ride over my 2005 Fuji Cross Pro.