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  • Constructed out of light and sturdy 6061-T6 aluminum with 2 lightweight nylon/fiberglass cages
  • Cages can be rotated for easy access
  • Mounting bracket is compatible with standard 7mm saddle rails
  • Profile RM 21 saddle mount water bottle cage includes CO2 mounting brackets for convenient storage of CO2 cartridges (cartridges not included)


View all Profile Water Bottle Cages

REI membership


Best Use Cycling
Number of Bottles 2 bottles
Adjustable No
Material(s) Alumunium
Weight 190 grams

The REI Difference

100% satisfaction guaranteed

We stand behind everything we sell. If you are not satisfied with your REI purchase, you can return it for a replacement or refund within one year of purchase.

REI's guarantee doesn't cover ordinary wear and tear or damage caused by improper use or accidents.

If your item has a manufacturing defect in its materials or workmanship, you can return it at any time. See our limited warranty.

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At REI, we live and breathe the outdoors, and we're passionate about sharing our expertise with people of all skill levels. Whether you're new to the outdoors or a seasoned explorer, we'll take the time to understand your needs and help you find the right gear for you.

10% annual member refund

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*10% is typical but not guaranteed. Your refund is based on eligible purchases, which exclude REI gift cards, services, fees, REI Adventures trips, REI Garage, and discounted items. Learn more