Looking for the right project for a Mavic group that include the 851 drop parallelogram rear der (which I hope is on-topic?). I remember Sean Kelly riding this stuff on Vitus aluminum frames, but what other bikes were the Mavic (851) parts known to be on. I only every saw this stuff in pro racing and aftermarket contexts, never on a consumer bike, so I wonder what on-topic steel bikes invite the Mavic with 851? --Mitch Harris Little Rock Canyon, Utah