Shimano 105 BR-5800 Brake 2colors

• Same Impressive Braking As Ultegra And Dura-Ace Models

• New Symmetrical Dual Pivot Caliper Design

• Higher Arch For 28mm Tyre Clearance

• Twin Bearings At The Pivot For Reduced Friction

• Available In Black Or Silver

Arch - 51mm

27.5mm Pivot Bolt

R55C4 Shoe