Publicado Por En julio 22, 2026 RD-M4120-SGS NEW AND IMPROVED Shifting performance is important when you're riding in demanding terrain. Being able to go from a high gear to a low gear quickly will save your legs on those tough climbs. The Shimano Deore RD-M4120 10/11-Speed Rear Derailleur has a versatile design for both 10 and 11-speed drivetrains. It features Shadow technology for more stability during aggressive riding. This derailleur has a maximum cog size of 42T. FEATURES Versatile design for both 10 and 11-speed drivetrains Shadow technology for better derailleur stability during aggressive riding Maximum cog size: 42T It fits 1*10 , 2*10, and 2*11 speed ***These are OEM Shimano Parts, Brand new, Never Installed on Bike, Never used in any way, just NOT in retail packaging.***
