Water-rated to 1 ATM

HG sprockets ensure fast and responsive indexed shifting

Rubber seal located on the bearing's external side helps to reduce the risk of water penetration

Shimano Road Shifter Parts

Internally ovalized

Wheels Manufacturing PF30 EXI,HOLLOWTECH-II,MEGAEXO-LIGHT,MEGAEXO 68/73mm Bottom Bracket giant Water-rated to 1 ATMMachined aluminum shell threads together for precise bearing alignment and frame fit, reducing bottom bracket creaking and premature bearing wear. Replaceable Enduro bearings Made in the USA ABEC 5 Angular Contact sealed bearings Angular contact ball bearings are particularly suitable for carrying combined axial and radial loads