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GRX RD-RX815 Di2 Rear DerailleurOperates with Shimano Di2 for digital electronic shifting
Low-profile Race Aluminum rims add radial compliance and traction without reducing steering precision and feel
Locks late when braking providing control and directional stability featuring a tread design that continuous with long tread edges on the stud propulsion sides
A nearly seamless welding process and a special anodizing treatment boost strength and durability
Progressive geometry and super capable suspension give hard charging riders the tools they need to thrive in jumpy and steep terrain
Hope 74mm Caliper Adapter R-140mm to 160mm Silver Product Type_Disc Rotor GRX RD-RX815 Di2 Rear DerailleurOperatesFor use with 2006+ Hope 74mm mounted calipers IS front adapters fit both quick release (QR) and thru axle (TA) fork mounts with included spacers Fits front (F) and or rear (R) applications: (IS) International Standard; (PM) post mount TECH SPECS fork frame mount (PM 140) 74mm caliper post mount 74mm rotor (front rear) R 160mm part # K (HBMK) color silver
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