Ritchey Logic-E Cartridge Drop In Upper Headset - IS42/28.6 CheckoutSpec= MP Shimano Ultegra FC-R8000 Left Crank

Shimano Ultegra FC-R8000 Left Crank Arms

Chuck head with extra-long 360 degree pivoting hose and built-in hose pressure release buttonFits Presta / Schrader valves (Schrader valve adapter included)

A 15-degree angular contact design is used to handle both radial and axial loads

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Ritchey Logic-E Cartridge Drop In Upper Headset - IS42/28.6 CheckoutSpec= MP Shimano Ultegra FC-R8000 Left CrankRitchey Logic E Cartridge Drop In Upper Headset IS42 28. 6. Ritchey Logic E headset is designed to work with Shimano STEPS or Di2 routing the cable through the frame without the need to modify fork or frame. TECH SPECS Color Black Weight 44g