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Pro 4 Front HubTaller Flanges than the Pro 2 with no increase in weight for stiffer wheel builds
Precision wound coils from high tensile CrV-Sl suspension spring wire come in 7 spring rates in 5lb increments sold separately
Installs in a section of housing wherever desired for convenient adjustment on the fly
}Profile Aerodrink Base Bar Bracket
}Cane Creek Hellbender 70 Slam Upper Headset - IS42/28
Shimano EW-SD50 Di2 E-Tube Wire 750mm Shell ID-36mmx24tpi Pro 4 Front HubTaller FlangesShimano EW SD50 Di2 E Tube Wire 750mm. Shimano E Tube wires and connectorsFrame grommets for E tube internal wiring compatible frames are sold separately see Shimano Frame Grommet Kit Electronic Shifter Extra Parts Ultegra Di2 wires utilize Shimanos e tube technology; e tube is a two prong system and is NOT cross compatible with Dura Ace 7970 Di2 wiring All e tube wires may be used for internal or external applications TECH SPECS Length 750
