Shimano NOS Bicycle Dura Ace 4.5mm Downtube Shifter Screw wD-ring Ea


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SKU: SH-6809821 Categories: ,


This pre index shifting and pre 1985 downtube shift lever screw works with older Shimano bosses which did not have a square base; also, the shift levers did not have a concave boss cover that went between the downtube and the back side of the shift lever. Since 1985 Shimano has used 5mm rather than this smaller 4.5mm diameter screw.

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