Gear > Nutrition > GU Gu Rocktane Ultra Endurance Energy Drink Mix

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GU Gu Rocktane Ultra Endurance Energy Drink Mix

5.0/5
(1)
High carb fuel and hydration for your longest, hardest efforts Roctane Energy Drink Mix is made for endurance. It combines fast-acting carbohydrates with critical electrolytes and amino acids to keep you going strong during intense or extended activities. Whether you're tackling big mileage, climbing steep hills, or pushing through the heat, this drink mix helps you stay fueled, hydrated, and ready to finish what you started.

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Image of GU Gu Rocktane Ultra Endurance Energy Drink Mix
Gu Rocktane Ultra Endurance Energy Drink Mix
5.0/5
(1)
Pros
  • Not too sweet (which is a relief)
  • Gluten-free, dairy-free, vegan, kosher, banned substance tested
  • 250 calories
  • Electrolytes including sodium, L-Leucine, L-Valine, L-Isoleucine and Beta Alanine for fatigue
  • No clumps and it mixes easily
  • 1900mg amino acids
  • Caffeinated and non-caffeinated flavors
  • Tasty
Cons
  • Large amount of mix, so you may want to use a wide-mouth bottle or mix in a pitcher first

5.0/5

Summary

I was sent the GU Rocktane Ultra Endurance Energy Drink Mix gratis for review and it's so nice to drink something during a workout that isn't too sweet or syrupy. I tried both the caffeinated and non-caffeinated flavors, and I love both!
Posted Oct 19, 2026
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