Description
Ofmega Gran Premio #1200 drillium Crankset with drilled chainring in 52 42 and 170mm with italian Bottom Bracket from the 1970s 1980s sirer NOS Regina Extra BX Crono NOS Regina Extra BX Crono 6 speed Freewheel with 13 18 teeth and french thread from 1988 Dura Ace Uniglide cassettes used a smaller thread diameter for top sprocket then the standard Uniglide cassettes