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Ships within 48 hours · Estimated delivery Jul 22 - Jul 27
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Description
Shimano GRX ST-RX815 11-Speed Di2 Right Drop-Bar Shifter/Hydraulic Brake Lever with BR-RX810 Flat Mount Caliper, Pre-Bled 1700mm HoseThe Shimano GRX ST RX815 11 speed Di2 shift brake lever integrates electronic shifting with improved grip and confidence on chippy surfaces and descents. 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
The Shimano GRX ST-RX815 11-speed Di2 shift/brake lever integrates electronic shifting with improved grip and confidence on chippy surfaces and descents.- 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
Product Specifics
- Pad Compound: Resin
- Defined Color: Black
- Brake Lever Use: Right
- Color: Black
- Brake Caliper Mount: Flat Mount
- Rotor Included: No
- Hydraulic Hose Length: 1700
- Hydraulic Fluid Type: Mineral Oil
- Rear Der/Shifter Compatibility: Shimano Road Di2
- Drivetrain Speeds: 11
- Weight: 414
Today's Stock Status
10+ Available to ship in 2-4 Business Days
UPC: 192790448930
EAN: Not available
Manufacturer Part Number: IRX815DRRDSC170
LD0637
155805-Q0-L
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Goldilocks of socks!
Size: Medium, Color: Deep Sea/Breaker Blue/Electro Pink
Great socks....good support - the goldilocks. Not too thick or too thin; stay up nicely. Love the colors!
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Reviewed in the United States on January 30, 2024
★★★★★ 5
Best socks
Size: Medium, Color: Pink Elixir Assorted
Everyone got socks in their stockings this year. But no one was complaining. They weren't thin like some socks. But not super thick either. Just right. I even bought a pair for myself. No regrets. Will definitely buy again.
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Reviewed in the United States on January 24, 2024
★★★★★ 5
Great socks
My husband will only wear 100% cotton socks none of the spandex moisture control etc so these are hard to find in stores but he loves them and they last a while
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Reviewed in the United States on May 8, 2025
★★★★★ 5
Great feel, amazing tech, and perfect fit
Size: Large, Color: Black/Gray (6 Pairs)
I've been purchasing the white w/grey toe socks for most of my adult life. Never really understood why I'd want anything else. Saw these as an Amazon suggestion one day and figured I'd give them a shot. Oh my freaking feet have never been happier!!!
I imagine that the fabrics used by UA to wick away sweat and odor are what makes these socks so comfortable, but I would be lying if I said I understood why they were so amazing. They slip on effortlessly and hug your foot throughout the day. Unlike the socks I used to purchase, these do not lose their shape after a full day of wear and exercise. They also have ample thickness to protect my feet while I'm running from any rubbing or hot spots from my shoes. I imagine this has a lot to do with the fact that they maintain their shape and do not move/slip around while wearing.
I was a bit hesitant to purchase black running socks at first, but they hide right below my shoe line and are even less noticeable than my old white w/grey toe socks I used to purchase. I am not certain what "charged cotton" means, but if it means amazing feel, great features (wick away sweat; fight odor), and all for a reasonable price. I'm in.
Overall, if you're looking for a nice pair of socks to wear throughout the day or while doing your workout, you would be remiss in not giving these UA socks a shot.
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Reviewed in the United States on April 1, 2017
★★★★★ 5
Comfortable socks
Breathable and stretchy cotton socks. They are stretchy, thick and soft.
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Reviewed in the United States on February 7, 2026