Replacement for BB-ES25, now 25g lighter
Tubular 22mm spindle for Octalink V2 crank arms
More rigid assembly than square taper
Sealed cartridge bearings
Mounting bolts not included
The RC1 offers advanced technologies at an affordable price. Its precise, foot-hugging fit and stiff sole make pedaling more efficient, while it's wrap-around upper provide superior comfort.
Shimano SW-R671-L TT Bar Left Shift Switch – 2-button design with fitted electric wire (620 mm length). Designed for time trial handlebars for precise, effortless electronic shifting.
