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Roctane Ultra Endurance Energy Drink

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Created for high-intensity and demanding activity, Roctane Ultra Endurance Energy Drink packs more electrolytes and carbohydrates than your average electrolyte drink. Each serving is packed with branched chain amino acids to decrease muscle damage. Taurine is also added to improve cardiac output. Available in 3 refreshing flavors, including caffeine-free Grape.


Roctane Ultra Endurance Energy Drink is a carbohydrate intensive energy drink for ultra distance and intense efforts. It contains the critical carbs and electrolyte replenishment that ultra endurance athletes need to compete at high levels. And it comes in a super light tasting, easy to mix formula for fueling hour after hour after hour.




Box of 10 packets - $29.25
Canister - 12 servings - $27.00
Canister - 24 servings - $40.50

*Flavor is temporarily unavailable when unable to choose flavor.

  • TriLady
    Great for long training February 4, 2015

    I love this for long marathon training runs, and also for my long bike rides of over 2+ hours. My favorite on the bike, probably because it is so much easier to reach for a drink instead of messing with a gel, chomps, or something like that. The taste is good, light and not hard on the stomache. Great stuff!

  • Jordan
    True to the Roctane family February 4, 2015

    Just like the Roctane gels, Roctane Brew is exactly what everyone that can't do gels has been waiting for. So good it seems like cheating.

  • Rich
    Perfect for Training February 4, 2015

    I love this for my brick workouts - carry bottles on the bike and slam 32oz during the transition to run. It tastes good and gives me the jump i need to start the run!

  • Jake
    Pretty good endurance running fuel! February 4, 2015

    Overall this product was really good, but I feel like it doesn't improve upon the regular Gu Brew enough to be worth the cost. This is just a personal opinion but while training for my marathon and ultra I slightly preferred the regular Gu Brew only because I enjoyed the flavor more. Great stuff but just not for me!

  • Anna
    great for runners! February 4, 2015

    great product for those long runs where you need a lot of energy!

  • Chris
    Roctane Brew ROCKS February 4, 2015

    I use Roctane Brew for long rides when I am going to be out for 3 or more hours. It give me what I need so my body does not canabalize protein from muscles and I can go farther and recover faster after the ride. Roctane EVERY time does the job. Thanks GU

  • Rustin
    Roctane is better February 4, 2015

    If you enjoyed the taste and performance difference from the original GU to the roctane gel, this is the exact same. Ridiculously easy to drink and ridiculously delicious. Grape is amazing. Like carb loading in liquid form.

  • RH
    A cut above the rest February 4, 2015

    The Roctane Ultra Endurance Energy Drink is leaps and bounds better than the majority of other drinks on the market. Roctane drink replinishes what your body needs and allows you to push harder, stronger, and further that you thought possible. I use it for all my racing and my occasional 3+ hour traing rides.

  • David
    Does what it claims February 4, 2015

    This has become my go to for any long distance over 2-3 hours. I use it on my runs and rides as I train for IM distance tri and it really helps me get through the long days without bonking. My favorite flavor is the tropical fruit, DELICIOUS.

  • Bags
    This really ROC's! February 4, 2015

    I have been competing in mountain bike races for almost 20 years now from the expert to elite levels. Over those years I have used many supplemental products, but at the end of a typical race (2 plus hrs) I would always have stomach issues after finishing. I have not experienced this once since switching to Roctane!

  • Dustin
    2 Full Ironmans / 4 half IM's this is what I use February 4, 2015

    It's perfect for stuff over 4-6 hours... Enough said.. If you are going long then this is the stuff for you! Via RunDustin.com

  • Mountain Goat
    great for long rides! February 4, 2015

    Tastes surprisingly good on a hot day, and it just makes you feel good.

  • Andrew
    Training for the big race? Look no further, its right hear the best stuff February 4, 2015

    I will start by saying "AHHHHHH" you know that feeling after finishing a run, swim or just pushing past your limits for extra hard burning working out. You know the feeling right, well thats how i feel when I was first introduced to Roctane (i love the tropical fruit flavor) its a great tasting, power housing (yes housing is now a verb) sprinting to the finish line Ultra Endurance Energy Drink! Roctane ultra Endurance drink is just what it says Ultra! it powered me threw a 70.3 triathlon but that was the easy part. Roctane drink, and Recovery Brew got me threw all the 5 am swim work outs, 10k afternoon runs and pushed me threw my four months training leading up to my first triathlon. Roctane had the fuel to help get threw a work out and the Gu Recovery brew had the protein and carbohydrates I need to for my body to get back to 100% quickly and tasting great. So i could go back out there and do it all over the next day.

  • Taylor
    Actually tastes good! February 4, 2015

    I can't stand energy drinks normally, but I actually love the flavor of this one! It definitely helped me make it through my Ironman!

  • Rolando
    If you're still drinking those other sports drinks, you're doing yourself a disservice February 4, 2015

    I was a big supporter of other sports drinks that shall remain nameless, hint one is named after the University of Florida's mascot. During my longer rides and swims I would find it difficult to drink their sports drink and would find myself lacking energy and recovery took forever. Once I switched to Roctane everything changed. It's so much easier, and tastier, to drink. And I feel like it includes some elements that really are geared toward the endurance athlete. I'll never drink any other sports drink while training or racing.

  • Meghan
    Secret to better IM performance February 4, 2015

    When I started racing 70.3s, I had not yet discovered Roctane energy drinks. I noticed a considerable difference between two consecutive races when I switched to Roctane. Simply put, I had more energy in my tank by the time I reached the run. I have never dealt with GI issues as a result of using Roctane, and when I alternate between concentrated Roctane drink and water, I actually look forward to drinking it! Good taste, dissolves well. My favorite is Tropical Fruit.

  • Taylor
    pleasantly surprised! February 4, 2015

    I was pretty hesitant about this at first---not usually a fan of energy drinks. But it mixed very well and had great flavor, plus it gave my training a great boost!

  • Taylor
    pleasantly surprised! February 4, 2015

    I was pretty hesitant about this at first---not usually a fan of energy drinks. But it mixed very well and had great flavor, plus it gave my training a great boost!

  • Bama
    Not bad February 4, 2015

    I prefer the electrolyte brew, but this one works pretty good as well. Definitely has great flavor

  • Carl
    Best race drink February 4, 2015

    This drink really does give you ultra endurance and will make you preform to the best of your ability. Best sports drink I've ever had hands down.

  • robyn
    Good energy, flavor takes some getting used to February 4, 2015

    I used the lemon-lime Roctane drink on a 6 hour training run this summer on the trails. The flavor was a little odd (like lime zest?) but the effect was similar to a Roctane gel -- a good energy lift that lasted a long time. If I were using it in a race, I would train with it to make sure the flavor was palatable over the long haul.

  • Sunshinetripper
    It gives me that extra push!!! February 4, 2015

    I have had great results using the Roctane drink mix during mountain bike races. It seems to help me push a harder and go farther then previous drinks I have used. I do prefer the lemon-lime flavor. I tried the other 2 and didn't care for the flavor too much, but the lemon-lime is something I can get down when the intensity is high (not always easy for me). Of course, I realize taste is a personal thing.

    The bottom line is that Roctane drink mix really keeps me going!

  • Sam
    great drink February 4, 2015

    During my longer rides and swims I would find it difficult to drink their sports drink and would find myself lacking energy and recovery took forever. Once I switched to Roctane everything changed. It's so much easier, and tastier, to drink. And I feel like it includes some elements that really are geared toward the endurance athlete. I'll never drink any other sports drink while training or racing.

  • Scott
    Best drink additive February 4, 2015

    Tried the fruit punch at a race and loved the favor. Came home from that race and immediately ordered a box of grape. Since that time it's the only powder that goes in my water bottles and is in my bottles for every ride and race.

  • Bryan
    For the long haul February 4, 2015

    Having previously suffered from cramping late in races, a friend of mine recommended ultra endurance. He said it's only for events lasting longer than 3 hours. I sipped on one 21 ounce bottle during the second half of my marathon and managed to avoid cramps and fatigue. The taste is great and the sweetness has a perfect balance. It was SUPER friendly on my stomach during and after the race. I've been using this for the last 2 years and recently started using it on my 3+hr long bike rides. I sometimes stack it with GU Roctane gel toward the final push/leg of my race or training and it really helps me drop the hammer. Legit stuff.

  • Julian
    Roctane ultra delivers the energy you need! February 4, 2015

    The Roctane Ultra Endurance Energy Drink is a step above and better than the majority of other drinks on the market. Roctane drink replinishes what your body needs and allows you to push harder and further that you thought possible. I use it for all my racing and my occasional three hour runs!

  • JonnyWix
    My Go-To Drink February 4, 2015

    I have been racing MTB for a number of years, and have tried most every common mix out there. Roctane is the only one that I have used that didn't result in stomach issues at one point or another. The flavor is perfect, not too strong, not too weak. I use Grape and Punch because they remind me of Kool-aid. This stuff doors for ~1 hour sprints to 100 mile races.

  • Spencer22
    Helped me conquer Mt. Whitney February 4, 2015

    I tried the Grape Roctane while hiking Mount Whitney this past summer. I was surprised at how good it tasted and how much energy I had. When we got to the 99 switchbacks, I had no problem getting through it. I really think the Roctane helped a lot. The only draw back was I was farting the whole way up. My stomach was a mess! Either my girlfriends couldn't keep up, or they were staying back from the funky smell I was leaving behind. With that being said, I highly recommend Roctane. A few bad odors shouldn't stop anyone from reaching thier goals! Ha!

  • Jeanne
    Sustaining yet light February 4, 2015

    Before I tried Gu Roctane Drink, I had never experienced a nausea-free ride during the bike portion of an Ironman. Since I started using Roctane drink, I've never looked back. For the last three years, it's the only energy drink light enough in taste that it doesn't leave an annoying sugary taste in my mouth - and it digests well so it never sits in my stomach to cause bloating. If I need extra calories, I can add them seamlessly with Roctane gel. But the most amazing thing is getting enough fuel without feeling sick at all for the entire bike leg and being able to transition to my run without stomach issues. I can't thank Gu enough for this.

  • Kathleen
    Finally found the perfect product! February 4, 2015

    My 13yo son is a top ranked national tennis player who until now only drank water on the court because the "popular" sports drinks made him feel sick and left him thirstier. Eating bananas or energy bars didn't work either because he does not have an appetite to eat when playing/training hard. I am so happy we finally found something better than water that works! Now my son doesn't waste away and fade at the end of long matches or practices, now his weight doesn't plummet as he can nourish himself while on the court for hours. He looks healthier, feels better and is stronger. So happy!!!!

  • Shony
    Tropical Fruit is the Best! February 4, 2015

    I mix one scoop of Blueberry Pomegranate with one scoop of Tropical Fruit Roctane and it is the most heavenly experience of a lifetime. The Tropical fruit Roctane definitely packs a punch when it comes to energy, especially on the high intensity races or long grueling training rides. I use this for training and racing at the CAT 1 level and my results are consistent. Wouldn't use anything else as the taste and light consistency beats out anything (HEED...blahh).

  • Jared
    Allows me to go the extra mile!!! February 4, 2015

    I have tried numerous other Endurance Drinks out there. The Roctane is by far the best I have ever tried. It is lighter than the other drinks and doesn't overpower you with flavor. My favorite flavor is fruit punch. It greatly aids in my performance and my recovery times. This drink has allowed me to run longer distances, day after day, with little to no fatigue. It is not a miracle drink by any means, but with proper training, this drink WILL improve your performace. I have been using it for three months now and my weekly mileage has jumped from 25 miles/week to 40+ miles/week and my legs have never felt better. I normally don't write reviews, but I had to for such a great product.

  • Stu
    Yum! Grape is Fantastic February 4, 2015

    I love the grape Roctane drink! It goes down easy on rides and tastes great when mixed with other flavors of Roctane drink and also Gu brew. Pick up a mix of flavors and experiment you won't be disappointed :)

  • Brett
    best stuff out there! February 4, 2015

    I've used Roctane Endurance Drink in numerous ultra marathons and iron distance triathlons. Hands down the best stuff out there! The grape is BY FAR the best flavor and beats those "popular" brand sports drinks hands down. I'm not sure how it does it but Roctane gives me that extra boost when I need it most. I won't put anything else in my bottles!!!

  • Ben
    Great for racing! February 4, 2015

    I have been using roctaine and for training and racing. I am very happy with my preformance using roctaine. If all I need is two bottles, I have my first bottle filled with roctaine the first hour and a bottle of water along with a GU gel the second hour. Grape is my flavor of choice since I am caffeine free. I enjoy the grape flavor! Thanks GU!

  • Mark
    Best for all Ironman training rides. February 4, 2015

    I love the grape flavor, never get tired of it. Perfect fuel for those long ironman training sessions. Short hard rides too!

  • Matthew
    Easy way to pack in calories February 4, 2015

    This stuff tastes great and packs in a lot of calories easily. I've found it to work well for tough trainer rides when I needed some calories early on to pick me up. I've tried it a few time in races, and it seems it doesn't usually want to stay down all that well... not sure why I don't have this problem on the hard trainer sets but it just seems to be when racing. So, the Roctane gels are my go to for racing (and they work great!) usually just supplemented by water, but on the hottest days I'll throw in the Electrolyte Tabs for some bonus salt.

  • John
    First on the list of drink mixes February 4, 2015

    They taste great, easy to mix, and easy to pack. I generally buy the largest tubs to save a little cash. Then divide up the powder into pre-measured plastic vials.

    I've only tasted the Grape and Tropical fruit, I prefer the tropical but the grape is good too. Taste is light enough to not be tasting it later, but not so light that it tastes super watered down.

    These are great for just about any activity. A great drink to have after a long night of partying after mountain biking all day.

  • Erik
    Great Product! No more upset stomach! February 4, 2015

    I tried multiple products before using Gu Roctane Drink. Thise is the first product that has not upset my stomach. I really like the Grape flavor. It is not to sweet and works well in both hot and cold temps. Sometime I even use it on the way to a race when I am nervous and am having trouble eating. It's great because you get some calories and hydration so you know you can perform at your best.

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When should I use Roctane Ultra Endurance Energy Drink?

Roctane Ultra Endurance Energy Drink was specifically formulated for the demands of prolonged, ultra-endurance exercise. Specifically, events lasting 4+ hours. The drink is calorically dense, since consuming enough calories during these types of events can be a challenge. Caffeine is included to increase mental acuity, increase performance, and decrease perceived effort – all of which tend to go south during prolonged efforts. Taurine is included to help combat heart and skeletal muscle fatigue – as it has been shown to help increase contractility – which is especially important during long efforts where fatigue management is a big issue. The addition of beta-alanine and histidine help buffer acid caused by going over lactate threshold, and amino acids help prevent muscle damage and aid with muscle recovery.

While the drink was formulated for the demands of ultra-endurance exercise, this drink may be particularly useful during intense workouts as well such as a workout where an athlete will be performing 4 x 15’ threshold repeats for example. This kind of intense effort is one where caffeine may increase concentration and help the athlete push through the entire workout. Additionally, this type of workout is very intense and it can be a challenge to consume enough calories – making an energy dense drink beneficial and efficient. Combine that with increased buffering capacity and helping to speed recovery, the Roctane Ultra Undurance Drink may ergogenically benefit many athletes during intense workouts.

How can I use Roctane Ultra Endurance Energy Drink with Roctane Gel?

If you already use Roctane Gel, you can substitute some Roctane Gel for Roctane Energy Drink. This will help tailor energy intake to your needs and provide the beneficial ingredients found in both the gel and drink. While many ingredients are similar in the two products (carbohydrates, branched chain amino acids, histidine, and caffeine) each has unique ingredients which may also help improve performance (gel – vitamin E as an antioxidant; drink – taurine to help heart and muscle function, beta-alanine to help increase muscle buffering capacity). Therefore, using both products will help provide every nutritional advantage possible to athletes who demand the best from themselves and their nutrition. For many athletes, all they may need during prolonged exercise is one 21oz bottle of Roctane drink and 1 Roctane gel per hour for 340 calories and extra nutritional support to maximize performance.

Why does Roctane Drink cost more than Electrolyte Brew?

Roctane Energy Drink has many extra ingredients compared to electrolyte brew that increase production costs. These include most of the ingredients that make it like nothing else on the market – a special maltodextrin to increase energy density and improve consistency, caffeine and taurine, beta-alanine, histidine and branched chain amino acids.

What role does beta alanine and caffeine play in Roctane Energy Drink?

Beta-alanine is used to supplement the athlete’s diet to increase muscle buffering capacity. Beta-alanine is one of the limiting components of an abundant muscle protein called carnosine that help buffer changes in muscle pH during exercise. It has been shown that supplementing beta-alanine can help increase muscle carnosine content, and therefore increase muscle buffering capacity and the ability to minimize changes in muscle pH during intense efforts over lactate threshold.

Caffeine has been shown in many studies to increase exercise performance. Whether the performance task was short or long – caffeine helps athletes perform at their best. It can help increase performance by decreasing perceived effort as well as helping athletes maintain focus and concentration.

Why is taurine good for endurance sports?

Several studies have shown that during prolonged exercise (half Ironman and Ironman events), the ability of the heart to pump blood (myocardial contractility) is decreased, which can lead to decreased exercise capacity. Similarly, prolonged exercise also promotes skeletal muscle fatigue. Taurine helps to maintain heart and muscle function by helping with calcium handling and may help decrease fatigue in these tissues during prolonged exercise. Additionally, taurine has been shown to increase muscle function with aging, and when combined with caffeine increases performance during a 1 hour cycling time trial.

Will I get dehydrated from caffeine in a sports drink?

A key question regarding caffeine in a sports drink revolves around the well known diuretic effect of caffeine to promote dehydration. Several studies have shown that caffeine ingestion during exercise does not influence weight loss, sweat rates, urine output and plasma volume compared to water alone. This may be due to decreased kidney blood flow during exercise which is proportional to exercise intensity, which minimizes urine production. Therefore, it appears that caffeine will not lead to diuresis if consumed during exercise – and will not contribute to dehydration.

Tropical Fruit

Maltodextrin, Fructose, Sodium Citrate, Taurine, Citric Acid, Natural Flavors, Histidine, Leucine, Valine, Carnosyn® Beta-Alanine, Malic Acid, Potassium Citrate, Fruit And Vegetable Juice (As Color), White Tea Caffeine, Isoleucine. Caffeine: 35mg per serving.

Lemon Lime

Maltodextrin, Fructose, Sodium Citrate, Citric Acid, Taurine, Histidine, Natural Flavors, Leucine, Valine, Carnosyn® Beta-Alanine, Potassium Citrate, White Tea Caffeine, Isoleucine, Turmeric (As Color). Caffeine: 35mg per serving.


Maltodextrin, Fructose, Sodium Citrate, Natural Flavors, Taurine, Citric Acid, Histidine, Leucine, Valine, Tartaric Acid, Carnosyn® Beta-Alanine, Malic Acid, Potassium Citrate, Fruit And Vegetable Juice (As Color), Isoleucine. Caffeine Free.

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