Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Shimano GRX ST-RX400/BR-RX400 Hydraulic Disc Brake and Brake/Shift Lever - Right, 10-Speed, Flat Mount, Finned Resin Pads, BlackThe Shimano GRX ST RX400 10 speed hydraulic disc brake lever provides greater control on mixed terrain. Gravel inspired Dual Control shift brake lever and bracket ergonomics Anti slip brake lever Same light shifting operation as top tier systems Tooled reach adjust allows for lever to be adjusted to fit multiple hand sizes and riding preferences Compatible only with FD 4700 and FD RX400 front derailleurs, and RD RX400 and RD 4700 rear derailleurs
The Shimano GRX ST-RX400 10-speed hydraulic disc/brake lever provides greater control on mixed terrain.- Gravel inspired Dual Control shift/brake lever and bracket ergonomics
- Anti-slip brake lever
- Same light shifting operation as top tier systems
- Tooled reach adjust allows for lever to be adjusted to fit multiple hand sizes and riding preferences
- Compatible only with FD-4700 and FD-RX400 front derailleurs, and RD-RX400 and RD-4700 rear derailleurs
Product Specifics
- Pad Compound: Resin
- Defined Color: Black
- Brake Lever Use: Right
- Brake Caliper Mount: Flat Mount
- Color: Black
- Rotor Included: No
- Hydraulic Hose Length: 1700
- Hydraulic Fluid Type: Mineral Oil
- Rear Der/Shifter Compatibility: Shimano Road
- Drivetrain Speeds: 10
- Front Der/Shifter Compatibility: Shimano Road
Today's Stock Status
Currently not available
UPC: 192790450148
EAN: Not available
Manufacturer Part Number: IRX400DRRDSC170A
LD0643
155811-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
4.1 ★★★★★
Based on 122 reviews
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Product Reviews
★★★★★ 5
Fav socks
My favorite socks! Love them!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 20, 2026
★★★★★ 4
Not bulky fit
Size: Large, Color: (009) Gray Dawn / White / Prime Pink
Thinner than UA other cushioning run socks, but this fit is perfect and doesn't shift in my shoe. I wear a women's 9.5 and determined Large doesn't squeeze my foot like Medium size (too exact). Bonus... avaliable olors beyond black and Grey.
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Reviewed in the United States on October 2, 2025
★★★★★ 5
Comfortable
These are very comfortable to wear
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
★★★★★ 5
Love these socks!
The wife struggles with socks. She only like the Nike ones, then they discontinued them, so had to start the search again! Found these, they are expensive just like the Nike, but the size is true, they look great, they are super soft and stretchy. They are light weight and breathable and seem to wick away moisture. She loves these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 18, 2025
★★★★★ 5
Great fit
Size: Medium, Color: White
Perfect fit and they don't slide off the back of your ankle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
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