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Right - 11-Speed
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Shimano GRX ST-RX815 Di2 Individual Lever

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Backorder: This item is currently out of stock but is available to purchase today as a backorder. The expected availability date shown above is our best estimate as to when it will be shipped to you, but this date is subject to change based on our receipt of this item from its vendor. Shipping in the continental US is free for all backorder items (for international orders, our customer service team will contact you when the item is available to ship). Your credit card will not be charged until your item ships (Paypal requires payment up front, but you can cancel for full refund). Anytime prior to shipment, your backorder can be cancelled by contacting our customer service team.

GRX ST-RX815 Di2 Individual Lever

No longer do you need to piece together mountain and road bike components to get exactly what you want for your off-road drop bar bike. Playing bike surgeon with the random parts you've gathered can be fun, but efficiency and the reliability that everything will -- just work -- is much more satisfying.

Rough road ready.

Following the launch of Shimano's GRX system, the option to elevate that group beyond your usual cables and into the electronic level is here. On the inside, the Ultegra Di2 is the same, but the outside is a brand new beast. Featuring a much more drastic slope, the new gripping traction will help keep you secure in the cockpit as you fly down gravel roads, without letting an unexpected bump throw you off your line. Braking on rough terrain is all about precise calculations and the new re-positioned lever makes it easier to access your brakes, whether in the drops or on the hoods.

Tuned for off-road.

Distinguishable clicks between upshifts and downshifts are effortlessly reachable from both riding positions, allowing you to focus on the terrain ahead and giving you peace of mind.

  • A raised hood head prevents hand misalignment and slippage, while a recessed finger notch prevents upward slipping
  • Anti-slip texture and brake lever coating
  • Higher brake lever axis and curved lever allow for higher braking efficiency to reduce fatigue on long rides
  • Tooled reach adjust allows for lever to be adjusted to fit multiple hand sizes and riding preferences
  • Does not include caliper or hose
  • B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.

    Actuation: electronic 

    Series: Shimano GRX 11-speed 

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    Reviewed 9/15/2020
    by John42
    Cycling Enthusiast
    Vancouver, WA
    Value Rating
    Overall Rating
    Stylish Functional Fit Shifters Di2 GRX

    GRX ST-RX815 Di2, eye-catching for a gravel bike upgrade, These are great fit in the hand. Shimano put a little off-road feel into these shifters, allows me to hold tight as the hoods are sleek; I feel I have a good firm grasp on the bike, and it wont get away from me on a bumpy decent, tested on Forest park. The electric shifting is a real bike up-grade, making the shifting experience quick and efficient.

    As I enjoy both a cable system bike and this electrical shifting system. Shimano is a reliable, well build system.

    Di2 is not necessary nor for everyone; the gears shift like a 'mouse click', and I did it with my pinky (laughs).

    It doesn't make cycling easier, you just go faster (shifting gears)

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    Reviewed 9/3/2020
    by hubbellm
    Cycling Enthusiast
    Encinitas, California
    Overall Rating
    Awesome equipment, comfortable on steep descents, reliable braking!

    Mounted on gravel bike, I ride primarily in the hoods, comfortable all day long, great braking power!

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    Thank you for your feedback.

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