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Product Condition The GRX ST-RX815 Di2 Shifter amp Disc Brake Caliper is in Excellent condition The Shifters are in excellent condition The shifters were previously owned for approximately weeks The following observation has been made about this item The shifters are very clean There are no signs of impact Package is ripped Item sold as is All warranties voidSize Unisex LeftFrontColor BlackRetail Cost 40499Gone are the days of awkwardly piecing together components that span from road to mountain bike disciplines and tossing them on your off-road drop-bar bike like Frankenstein crafting a living breathing monster Instead we have a groupset of our own with Shimanos GRX system launching earlier this year and now you can elevate that group beyond your usual cables with the GRX ST-RX815 Di2 Shifter ampamp Disc Brake Caliper that bring GRX into the electronic scene At first glance its not all that different from Ultegra Di2 well on the inside at least Its actuation is the same and offers the same benefits of program-ability but on the outside youll find that the hoods are a whole new beast They feature a much more drastic slope and gripping traction designed to keep you securely supported in the cockpit so an unexpected bump doesnt have your mitts sliding off plus a re-positioned lever built for easier access whether on the hoods or in the drops so you can comfortably brake on rough terrain without risking it allThe shift buttons are designed for easy reach from the hoods as well as in the drops and offer a distinguishable click between upshifts and downshifts for a little extra peace of mind when youre 160-miles deep in a gravel race and each deliberate move matters Like its Ultegra road counterpart the feel of shifting is much like clicking a mouse requiring just 2-millimeters of movement on your end so you dont have to put nearly as much focus into shifts enabling you to pay more attention to the terrain ahead On the back end of things Shimano utilizes its BR-RX810 flat-mount calipers for reliable stopping power of ServoWave and cooling properties of IceTech brake pads The calipers operate with similar modulation to standard Ultegra but ServoWave adds in improved feel right out of the gates as the pads move together more quickly at first before slowing for better control as you brake This technology has been popular on the mountain bike side of things for some time and now is trickling into gravel where we get to enjoy the benefits of our off-road counterpartsWhy We Like The GRX ST-RX815 Di2 Shifter amp Disc Brake Caliper DWGAO80

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