SRAM RED E1 Upgrade Kit

Marsoni

M251S

$1997.50

Get it in 3 business days with 1 day shipping. Friday, May 29

SRAM RED E1 Upgrade KitSRAM RED E1 UPGRADE KIT The ultimate in cockpit data integration. Personalize your ride and your data with RED AXS controls and the Hammerhead Karoo. Use Bonus Buttons to scroll your head unit or shift your derailleur from our most comfortable controls. FEATURES Aftermarket kit includes: Hammerhead Karoo, left and right Shift Brake System controls, and flat mount calipers Compatible with all generations of AXS derailleurs

Easy Shipping

Quick Dispatch:

Your SRAM RED E1 Upgrade Kit orders ship within 1-2 business days.

Delivery Options:

Standard: 3-7 business days
Fast: 2-3 business days
Express: 1-2 business days

Order Tracking:

You'll receive a tracking link by email once your SRAM RED E1 Upgrade Kit ships.

Need Help?
Questions about SRAM RED E1 Upgrade Kit, sizing, or delivery? We're just an email away.

Live Shipping Estimates:
Enter your location at checkout to see available shipping methods and costs for SRAM RED E1 Upgrade Kit in your area.

Get Shipping Estimates

Country Zip/Postal Code

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

AMAZING for my 7 year old daughter. She can tie shoes but I no longer have to wait on her to do so. It takes 2 seconds for her to put these on and she says that they are super comfortable. We have been to Silver dollar City multiple times and she never complains about her feet hurting! They are easily washed in the washer. They hold up great. I think they are very much worth the money! Fit normal.

WAS THIS REVIEW HELPFUL?YesReportShare

Reviewed in the United States on December 8, 2025