Shimano EW-JC302 Di2 Junction Box - 2 Ports Use With EW-SD300 Model Name-GXP/HOWITZER B.B. Tool 60 e-Bike approved Yes Primary

60 e-Bike approved Yes Primary Color Black Tire Compound MAGI-X Tire Diameter/ISO 27

Patent-pending hexagonal air grid technology is bio-engineered and designed to provide optimum bike seat comfort and cushion for your sit bones

Compatible with all Tellis Dropper Seat Posts

featuring patent pending technologies designed to reduce flow separation and maximize the rim sailing effect ultimately lowering overall aerodynamic drag

Pad Style 18 Compatiblity Promax DSK-320- DSK-400- DSK-610- DSK-700- DSK-720- X-Nine Pad Material Semi-Metallic Standard Pad Color Brand Kool-Stop Backplate Steel

Shimano EW-JC302 Di2 Junction Box - 2 Ports Use With EW-SD300 Model Name-GXP/HOWITZER B.B. Tool 60 e-Bike approved Yes PrimaryShimano Di2 Frame Junction BoxFrame Junction Box connects via SD50 E tube wires to four different points: front derailleur rear derailleur cockpit junction box and battery mount All Di2 components on the bicycle require the same firmware version. Using Di2 components with different firmware versions may cause malfunctions Use Di2 system checker to update component firmware from http: e tubeproject. shimano. com