PRO Cartridge Headset Lower ZS56/40 1.5" GiantFebSale the liquid penetrates into the

the liquid penetrates into the inner sider of the chain

Perfect for front single and double MTB drivetrains

The Dura-Ace R9270 platform combines the reliability of Shimano wired drivetrain connections with wireless communication between shifters and the Di2 system

Chain management keeps the drivetrain quiet and secure

PRO Cartridge Headset Lower ZS56/40 1.5" GiantFebSale the liquid penetrates into theDue the high number of combinations for upper and lower headsets PRO offers its upper and lower headsets separately. So you can arrange your own individual solution for your frame and fork. The lower PRO ZS headset with semi integrated cup comes with a high quality double sealed cartridge bearing and anodized aluminum cup. Specifications Construction type (Ahead Thread): AheadIncluded in delivery: lower headset with crown race, cap, starnut,