Angular contact ball bearings are particularly suitable for carrying combined axial and radial loads

Bar switch to toggle your front lamp on and off

Additional front pad ventilation holes improve air circulation

Rims come tubeless taped but can also accommodate tubes and clincher tires without modification

Shimano DURA-ACE BB86 EXI,HOLLOWTECH-II,MEGAEXO-LIGHT,MEGAEXO 86mm Bottom Bracket compatio_raw Angular contact ball bearings areWith an advanced seal construction for smoother rotation, the DURA ACE is still lightweight at 54 grams. Bottom bracket with small ball bearings for lightweight Advanced seal construction for smoother rotation Weight: 65g (SM BB9000) 54g (SM BB92 41B)