4-Hour Fuel

Introducing NAKED - the flavorless fuel that lets you be design to your taste!

Back in stock! 

Order here or at our endurance gear store (Adengear.com) if we are out of stock

Welcome to our little corner of the crazy world of endurance nutrition. We love our product, and hope you do too. Product is back in stock here! But if it is out of stock, check our sister gear site at AdenGear.

Featured Products

Secret Formula released!

We debated long and hard about keeping this secret for ourselves as athletes, but the only thing that is more rewarding than being on the podium at an ultra-distance event, is helping others get to their personal podium! Over the past three years, we've had such success with this formula and fueling paradigm. It has been an integral part of the team's success at our wins of the Patagonian Expedition Race, Expedition Canada, Everglades Challenge, WA360 paddle race, and Chesley's Solo 24 national title. The longer the race (or stage), and the higher output we want/need to maintain - the more crucial it has become.

Energy uptake is key for a great performance in sport over 3 hours. After 15 years with long distance endurance sport I have gotten tired of food during races. But energy that you can drink is easy to consume and get you going. 

I always divide my food in 3 groups:  high density energy, motivational stuff and funfood. This 4-hour Fuel counts as all 3 at the same time.

Lars Bukkehave
European Adventure Racing Champion

24-hour races are all about efficiency if you want to be competitive.  In the 2021 USARA nationals, we used 4-hour fuel as 90% of our calories.  We never got sick of it and felt powerful on every stage.  My team's race plan now includes 4-hour Fuel!

Lebn Lovejoy
USARA Nationals 5th place-Team BlueJay

My name is Mateo and I am an ultra endurance bike pack racer based in Bend, Oregon. I have been using your product now for a few months and cannot praise it enough. With the rigors of training, travel and racing, your product is honestly the best supplemental calories in a mixable form that I have ever found. 

Competitive bike-packing racer

About Us

Daniel Staudigel

fuel designer

Team Bend Racing's Daniel Staudigel developed the initial iteration of 4-Hour Fuel after after his spectacular bonk was filmed for all to see in Amazon's "World's Toughest Race: Eco Challenge Fiji".  He needed a more efficient and easy tasting fueling solution for his expedition racing.  Since that inception, Team Bend Racing has used the 4-hour fuel across the globe on their way to podium placements in expedition races, 24 hour solo mountain bike events, FKTs, and ultra distance paddling races.  Now it is your turn to try it.

How to mix: 

Front Country Option (at home) - fill your bottle of choice 2/3 with water (we use a standard 16 or 20 oz bike bottle). Pour that water into a blender, toss in the entire powder packet and blend. Dump into your bottle, and top it off with water. Shake. Go get after it. 

 For long races that are not super hot, we pre-mix most bottles this way, and leave them in TA bins for up to 60ish hours and have had no problems. 

Backcountry mixing (In the TA) - Fill bottle half full with water, then add half the powder and shake like crazy. Add a bit more water and the rest of the powder and shake again. Top off with water and shake as you leave the TA on the way to greatness. 

Mixing notes:  

It is fine to mix the 4-hr fuel at less than full strength (we recommend at least 1/2 the pack, and then - Congrats, you just made 2-hour tea!), but if you are mixing just 1/4 serving in a bottle (200 cal) - well there are heaps of products out there that do that same thing and will likely taste better at that dilution. We've mixed this formula at all strengths from 2-6 hours in a single bottle and consensus is that the 4-hour strength is the best taste/nutrition/weight ratio for us. Remember, this is high density caloric fuel! That bottle is supposed to last you for 4 HOURS. So it is not your primary hydration source. Carry a separate bottle or bladder with good old straight water. Yum. 

Product Concept - we are firm believers in simplicity and science, and yet our experience in expedition racing has often put us into physical and emotional places that are very under-researched. There is plenty out there on how to fuel for a marathon, or a Ironman....but what about when you have to carry all your food?!? No aid stations. Unfathomable distance. And then we add sleep deprivation which just makes everything (fueling included) so much harder. 

 For our team - this product solves many problems. It eliminates choice. Having a singular primary and palatable fuel source takes the "choice" aspect away from where we get our calories. We know we are getting a "race proven" mix of easy to digest complex carbs, plant based protein, extra BCAAs, electrolytes, and natural fruit sugars.Liquid food is much easier to digest in many race situations, allowing for endurance racers to maintain a competitive output. Bike bottles are convenient and fast to drink from, making it easy to stay fueled on the legs (bike and paddle) that generally have athletes having to choose between slowing down to eat or digging a deep caloric hole as they try to maintain speed and efficiency. 

Have questions? Of course you do. Fire away. You can email us at bendracingor@gmail.com or reach out to Jason Magness or Daniel Staudigel or Bend Racing on FB and we are happy to talk. If you wanna tag us in your adventures - we might as well start using #4hourfuel. Thanks so so much everyone. 


4-hour fuel is tested and hand mixed in Bend Oregon.  If you are ever in the area come say hi!

4-hour HQ

61445 Barleycorn lane