Less compression damping in the Low Speed Compression open position and additional support in the High Speed Compression closed position gives you the traction
Infinitely and easily adjustable chainline three different length spindles
}Shimano Deore XT RD-M8250-SGS Di2 Wireless Rear Derailleur - 12-Speed Long Cage Shadow ES Black/Gray
46 Spindle Interface Type SRAM DUB BB Shell Width (mm) 86 BB/Frame Interface 386 EVO
Specialized S-Works Shiv Module Chameleon/Tarmac Black/Metallic Wht Silver L CheckoutSpec= 07+ Domain (Fixed 180mm) Firm/Blue Less compression damping in theSW SHIV MODULE CMLN TARBLK METWHTSIL XS Brand New in Box FRAME S Works FACT 11r carbon, FACT IS construction, crosswind optimized airfoils, 1 1 8 lower bearing, OSBB, Control Tower Fit System, Fuelselage Integrated Hydration System, 130mm spacing FORK Specialized FACT carbon, full monocoque HANDLEBARS Specialized Shiv Aerobar, carbon STEM S Works Shiv aero stem SEATPOST Shiv, 12. 5mm FRONT BRAKE Shiv rim caliper REAR BRAKE Shiv rim caliper BOTTOM