170mm ISIS crank set AVAILABLE IN BLACK. WE HAVE SILVER AND BLACK IN STOCK. ASK VIA A NOTE IN YOUR ORDER IF YOU WANT BLACK 170mm ISIS crank set for front freewheel system, FW threads on the right crank. Forged, polished alloy for use with ISIS spindle BB ONLY. These require 9/16" pedals. These cranks essentially eliminate the wobble and square taper creep.