SHIMANO GRX RX817 Di2 Shadow RD+ Direct rear derailleur 11s

Feature: - Adjustable Chain Stabilizer Prevents Chain Slapping And Drops - Switch Stabilizer On/Off To Match The Terrain - Gravel-Tuned Clutch Tension Benefit: - Silent And Uninterrupted Rear Shifting On Rough Terrain - Total Capacity: 38t - Smooth And Reliable Mixed Surface Shifting - Compatible With Current Road Dual Control Lever - Maximum Front Difference: 17t - Top Sprocket: Max. 11t/Min. 11t - Low Sprocket: Max. 34t/Min. 30t Specifications: - Series: Shimano Grx Di2 - Direct Attachment: Yes - E-Tube Connector (Pcs): 0 - E-Tube Port (Pcs): 1 - Firmware Update By E-Tube Project: Yes - Fluoric Coated Link Bushings: 4 - Low Sprocket_Max.: 34t - Low Sprocket_Min.: 30t - Max Front Difference: 17t - Rear Speeds: 11 - Sealed Bearing Guide Pulley: Yes - Sealed Bearing Tension Pulley: Yes - Top-Normal Spring Type: Shadow Rd+ - Top Sprocket_Max.: 11t - Top Sprocket_Min.: 11t - Total Capacity: 38t Technologies: - Di2 (Digital Integrated Intelligence): The Revolutionary Di2 Shifting System Solves The Challenges Drivetrains Present To The Power-Delivery Equation In Cycling. Di2 Gives You Instant, Accurate, Lighting-Fast Shifts The First And Every Time, At The Push Of A Button. Even In The Most Extreme Conditions, Shifting Is Precise And Controlled. You Can Change Gear Even Under Heavy Load While Climbing Or Accelerating. With Di2, You Are In Complete Control. E-Tube: - The E-Tube Platform´S “Plug & Play” And D-Fly Wireless Connections Make It Easier Than Ever To Check The System´S Status, And Apply Customized Settings To Di2 And Shimano Steps Components With A Pc, Tablet Or Smart Phone. Benefits & Features - Wirelessly Customize Functions Like Shimano Synchronized Shift Over Bluetooth® While Out On A Ride. - Automatically Checks For Firmware Updates On Each Startup To Ensure All Components Are Running The Latest Version. - Pc, Smartphone And Tablet Applications Can Help You Quickly Diagnose Errors And Simplify The Repair Process. - Beautiful Visualization Of Your Real-Time Shimano Steps Riding Data On Your Smartphone. - Advanced All-Weather Design Resists Rusting, Stretching, And Freezing. Seis Shimano Electronic Intelligent System: - A Technological Innovation Of The Computerized Shifting System Based On The Di2 Concept With Which Is Called, The Seis (Shimano Electronic Intelligent System). The Seis Innovative Shift Technology Is Still Based On The Shimano Index System (Sis) That Has Proved Its Superior Gear Changing Characteristics Over The Years. The Big Difference Is That In This Case, The Shifting Action Is Provided For By Electronics Instead Of Mechanics. - This Electronic Shifting System Has Been Extensively Tested Over Past Two Years By Several Professional Riders In All Conditions Possible, Such As Rain, Mud, Low Temperatures, Cobble Stone Roads And Combinations Of All Of These At The Same Time. Shifting Is Executed By Simply Pressing The Button. No Power Is Needed To Shift, Which Gives Important Advantages Since It Is Easier Now To Always Keep A Tight Grip On The Handlebar And To Keep Your Concentration On Riding Instead On Shifting. - The Shift System Allows Accurate And Effortless Shifting In Difficult Circumstances For Example When You Have Cold Hands Or When You Are Completely Exhausted. Furthermore, The Shifting Performance Will Never Be Affected By Contaminated Or Stretched Cables Since The Shifting Signal Is Transferred Electronically. The Operating Buttons Work Similarly To Mechanical Dual Control Lever So You Don’T Need To Re-Program Your Mind For The Seis. Shimano Shadow Rd+: - Less Distraction Quiet Drive Train - Rear Derailleur Stabilizer Reduces Chain Slap - Simple Solution For Chain Drop - Lighter And More Efficient Than Roller Type Chain Device