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Get ready to conquer any terrain with the Shimano Ultegra Rear Derailleur RD-R8150 12sp. Our fastest and most precise shifting yet is now available with a single cage length option, perfect for 28-34T low sprockets. Don't settle for less, chase your next challenge with confidence and speed.
Collections: Derailleurs Drivetrain Shimano
Category: 12 Speed Electronic Rear