Some highly trained athletes are pushing those numbers, but that doesn't necessarily mean every rider should try to match them tomorrow. As reviews suggest, high carb intake is getting a lot more play in endurance sport, but the real benefit and how practical it all is, still very much depends on the individual athlete, the event, and your personal gut tolerance.
And this is a crucial point: Your gut basically has to be able to handle what your plan says on paper.
If one gel gives you somewhere around 30 grams of carbs, then:
30 g an hour = about one gel an hour
60 g an hour = about two gels an hour
90 g an hour = about three gels an hour
When you do the math, you can see why many riders find it hard to rely on gels alone for long rides. Three gels an hour is a lot. Even two per hour starts to feel repetitive, really sweet and a bit too much.
So yes, carb targets do matter, but they need to match the effort and your stomach.
WHAT MAKES ONE CYCLING GEL BETTER THAN ANOTHER?
This is where "best energy gels for cycling" stops being a simple ranking and starts to be about fit. Here is what to compare when looking for the right gel:
CARBS PER GEL
This is the place to start.
A gel with 22 grams of carbs and one with 40 grams are not quite doing the same job. Maybe higher-carb gels are useful if you want more fuel with fewer packets, but they also can be harder to handle if you’re not used to them.
TEXTURE
This may sound small until it really isn’t.
Some gels are pretty thick, sticky and very sweet; others are smoother and more watery. Maybe you don’t care about this during a 30-kilometre ride on a Sunday morning. But in the middle of a tough race, texture can be a whole different story.
ISOTONIC VS NON-ISOTONIC
Isotonic gels are usually thinner and designed to go down easier without needing a drink. Non-isotonic gels are more concentrated and often feel better with a few sips of water.
In theory, being isotonic sounds very simple, but many riders still prefer a drink with any gel because it just feels better.
CARB TYPE
If you want to do more carbs an hour, look for a gel that uses a mix of different carbs, often glucose or maltodextrin, plus fructose. That combo is commonly used to help you get more carbs during endurance exercise.
CAFFEINE
Caffeinated gels can give a boost late in a long ride or race, and caffeine is well known to help endurance performance. But just because you can have it, doesn't mean you should have too much, or at the wrong time. And some riders find themselves jumpy or nauseous when they do.
STOMACH TOLERANCE
Honestly, this is the big one. A budget gel that you can actually tolerate is way better than some super premium gel that makes you feel like crap.
PRICE PER SERVING
If you use gels all the time, then price does start to matter, and the smart way to compare is not price per pack, but price per actual carb serving.
BEST ENERGY GELS BY RIDER NEED
For each of the following categories, I don't think it's as useful to just name a particular gel. It's more useful to match the gel to the rider.
BEST FOR RACING AND HARD EFFORTS
For this, you want a gel that’s easy to open, easy to swallow, and gives you the right carbs without making too much of a fuss. A pretty common sweet spot is 25-30 grams.
BEST FOR LONG ENDURANCE RIDES
Long rides are where practicality really matters. You may want a gel that gives more carbs per serving, but many riders do their best with a mix of gels, drinks and maybe some easy-to-eat meals when the intensity is lower.
BEST FOR RIDERS WITH SENSITIVE STOMACHS
Go for something simple: a mild flavour, a smoother texture and ingredients you've already tried. This is not the place to try something new just before the startline.
BEST CHEAP CYCLING ENERGY GELS
Cheap cycling energy gels can absolutely be good enough. If the carb content is solid, the flavour is tolerable, and your stomach is happy, you don't need a super expensive gel to ride well.
BEST FOR CAFFEINE USERS
If you want a little caffeine, use caffeinated gels with a plan. Save them for key moments, like late in a race, before a decisive climb or before starting the run in a triathlon. Not every ride needs to feel like an espresso with a crash.
ARE CHEAP CYCLING ENERGY GELS GOOD ENOUGH?
Most of the time, the answer is yes. A more affordable gel will usually do the job if it gives you the carbs you need and you can stomach it comfortably. In a lot of cases, what you're paying extra for is texture, a certain flavour, or fancy packaging – not necessarily a significantly better performance result.
That said, there are riders who are willing to pay a bit more for a gel that:
- is less of a hassle to swallow
- causes fewer stomach problems
- isn't as aggressively sweet
- helps them cope with higher carb intake
- performs better in competitions than in training
This is one of those areas where beginners can overcomplicate things. You don't need the "best" gel according to the interwebs – you need a gel that you can actually use.
GETTING YOUR STOMACH USED TO HIGH CARB INTAKE
This is the bit I wish more newbies heard about early on.
Most of us understand we need to train our legs. We all get that we should probably work on pacing.
But gut training, you know, learning to fuel your body properly? That often comes a lot later.
And it shouldn't.
Not every energy source works for every rider. Some cyclists can eat just about anything and keep going happily. Another will grab the wrong gel at the wrong time and promptly regret every single life choice they’ve ever made.
This is especially noticeable in triathlon. That fueling plan that seemed okay on the bike may completely fall apart as soon as you start running. On the bike, your body stays more or less steady. As soon as you start running, everything starts moving more; your gut gets stressed in different ways, and what was fine 10 minutes ago is now very much not fine.
A few simple habits can make a huge difference:
- Start with lower carb targets and work your way up gradually
- Get used to using the same gels you plan on racing with in training
- Test higher carb options in training before you even think about racing
- Take water with your gels when you need to
- Don't panic-fuel at the end of a ride (this is a recipe for disaster)
- Remember that bike and run tolerance aren't always the same
- Spread out your intake instead of cramming all your gels down at once
Martin Opolecký, a PPC specialist on ROUVY’s marketing team who is in training for the 2026 IRONMAN Kaernten-Klagenfurt, Austria – remembers a fuelling disaster in one of his earlier races:
