Silca 3DP Direct Mount Hanger - Specialized BF PA Number of Chainrings: Double

Number of Chainrings: Double

SHIMANO GRX - Rear Derailleur - SHIMANO SHADOW RD+ - 34T max low sprocket - 2x11-speed

tubular and standard tyres

Cerakote/Anodized Finish

OCP mount technology allows you to adjust your Optimal Chainring Position (OCP) to within one degree increments to precisely configure your unique OCP to maximize power output to your distinct pedaling style

Silca 3DP Direct Mount Hanger - Specialized BF PA Number of Chainrings: Double*105 DERAILLEUR HANGER* SILCA 3D printed titanium derailleur hangers bring increased strength and stiffness to this overlooked component so critical to quick and precise shifting. Modern electronic derailleurs shift so fast, and with such force, that conventional hangers made from low grade aluminum plate will flex up to 4 degrees during a shift resulting in less precise and slower shifting. Using advanced 3D modeling with AI generated structural