Best energy drinks for cycling 2024: fuelling and hydration explained

Unsure of the best way to get the energy you need for riding? We take you through the options and our favourite energy drinks

A rider filling up a bottle with energy drink powder.
(Image credit: Future)

Avoiding the dreaded 'bonk' is one of the key tricks to increasing your enjoyment on the bike. There’s nothing worse than being an hour and a half from home having completely run out of gas.

While pacing is also an important aspect of managing your energy levels, the most fundamental point is ensuring you're consuming the right cycling nutrition.

Multiple studies have shown that keeping your carbohydrate intake up during training can improve recovery – plus continuously snacking through a bike ride does make it more fun!

There are many ways to ensure you get the necessary carbohydrates: the best energy bars are great for longer rides as they tend to be easier on the stomach and the best energy gels are perfect for a quick boost in a race or hard group ride.

But here we're looking at the best energy drinks or – in most cases – the best energy powders you can pop into your water bottles to create an energy drink. Like energy gels, this makes it super quick and easy to take on carbs while pushing the pace.

But they can also be good for all-day epics, ensuring that you are taking on enough carbs and saving you some effort chewing. Believe us, you can get tired of that!

The quick list

The best energy drinks

Fantastic value product and tasty too

Image shows High 5 energy drink powder

(Image credit: Tom Epton)

High5 Energy Powder

Fantastic value product and tasty too


Price per gram of carbohydrate: 2.0¢ / 1.6p
Flavour profile : Citrus, tropical and orange
Texture profile : Smooth, thickens as you approach suggested dosage
Carbohydrate absorbtion: 2:1 fructose

Reasons to buy

Excellent value
2:1 fructose ratio to aid absorbability 
Very tasty even when the dosage is abused

Reasons to avoid


Glucose and fructose are two different types of simple carbohydrates and they each get absorbed into the body in slightly different ways. Now, there is a limit to how many carbs your body is physically able to process in an hour – typically it's about 60 grams.

The key to this energy drink (and a few others) is exploiting the different absorption pathways of glucose and fructose – by essentially splitting the traffic, your body can absorb carbs (up to 90 grams) which is more than if just a single type of carbohydrate were used. 

Sure enough, I've been able to take on the full amount without experiencing any stomach issues – even when pushing at high intensity.

It's good value, too. A 2.2kg tub of this stuff will make a $41.70 / £33.99 hole in your finances, meaning that you pay 2.0¢ / 1.6p per gram of carbohydrate – which is quite reasonable.

As a testament to this drink's easiness on the stomach, there was one time that I panic-bought a tub at Decathlon the night before a 100km road race with no feed zone support. As a result, I went way over the recommended serving cramming 132g of carbohydrate into two 750ml bottles, so I had 260g plus a gel for the two-hour race. 

With a bit of bad luck, my race only lasted thirty minutes or so. But in that time I managed a third of a bottle and it wasn’t awful. With more reasonable concentrations, the taste and consistency are great.

The best for taste – but it is expensive

Image shows OTE energy drink powder

(Image credit: Tom Epton)

OTE Super Carbs

The best for taste – but it is expensive


Price per gram of carbohydrate: 4.4¢ / 3.8p
Flavour profile: Lemon and lime and blackcurrent, both mild and light
Texture profile: Watery
Absorbtion technology: Multiple energy substrate

Reasons to buy

Very pleasant tasting, mild yet flavourful 
Easy to consume large amounts 

Reasons to avoid


OTE sent both flavours for testing of their flagship ‘Super Carbs’ sports drink. Both flavours were pleasant and the solution felt light and refreshing – not at all syrupy-ish. 

The coolest feature of this drink is the amount of carbohydrates crammed in per serving. There’s 80g of per 500ml – excellent for energy density for fast-paced rides, and useful in in the colder months when you don't need to take on quite so much liquid. 

If you have two large bottles on your bike that’s enough carbs for around 4 hours of riding in just the bottles, freeing up your pockets for something a bit tastier than a gel. 

Priced at $33.00 / £30.00 for a 10-serving pack, this gives a price of 4.4¢ / 3.8p per gram of carbohydrate. If money is no object to you when it comes to sports nutrition, I would get the OTE super carbs - it was the tastiest and easiest to digest large amounts of carbohydrates during training sessions. 

In comparison, the High 5 powder was the best value option on test by a considerable margin, priced at 2.0¢ / 1.6p per gram of carbohydrate. On top of this, it was also tasty and easy to digest! The gains of the OTE Super Carbs only felt marginal, so for most people, it probably wouldn't be worth the price – but if you take an uncompromising approach to your nutrition, it certainly is the one to go for.

A tasty, pricey option that's easy to drink

Image shows Maurten energy drink powder

(Image credit: Tom Epton)

Maurten 320 drink mix

A tasty, pricey option that's easy to drink


Price per gram of carbohydrate: 4.3¢ / 3.9p
Flavour profile: Neutral
Texture : Slightly thick and smooth
Absorbtion technology: Hydrogel transports carbohydrates straight to small intestine

Reasons to buy

Easy to absorb 
Neutral taste profile makes drinking large amounts easy

Reasons to avoid

Acquired taste 

This is a product I was really excited to try. Maurten 320 drink mix has long been raved about by athletes in running and triathlon. The brand sponsors a few professional cycling teams and is seen featuring on Alex Dowsett’s YouTube channel regularly. 

This product came as a box full of sachets and each of these had 79g of carbohydrate which you can dissolve in a 500ml bottle (so no need to double up). It is possible – if not advised by Maurten – to have 118g of carbohydrate in 500ml of water with this product by splitting 3 sachets across two bottles. 

It’s easy to drink, but the taste is acquired. I started off not liking it, but by the end of the box I’d changed my mind – a mildly flavoured nothingness that split opinions amongst my friends. For long rides, the 320 drink mix was perfect, fuelling five hours plus without issue! 

A box of 14 sachets will set you back $48.00 / £43.00, giving a price per gram of carbohydrate of 4.3¢ / 3.9p.

Best Grand Tour stage win

Image shows SiS Beta Fuel energy drink sachet

(Image credit: Tom Epton)

SiS Beta Fuel

The product that fuelled the best Grand Tour stage win I've ever seen


Price per gram of carbohydrate: 3.8¢ /3.1p
Flavour profile: Orange or red berry
Texture : Watery
Absorbtion technology : 1:0.8 maltodextrin:fructose

Reasons to buy

Both flavours are very tasty 
Watery texture easy to drink 

Reasons to avoid

Sweetness can make it slightly sickly 

The product which powered Chris Froome’s epic raid on the Colle delle Finestre was also tasty. Coming in sachets of 80g of carbohydrates, the dosage is easy to calculate (however, there is a lot of packaging). 

For racing purposes, you often need more than 160g of carbohydrate in two bottles at any one time, so the ability to add extra mix was important. It’s not always possible, or practical, to get feed zone support. 

Beta fuel was fine up to about 120g of carbohydrate per 750ml - at which point the solution got a little syrupy. A box of 15 beta fuel sachets will cost you $45.00 / £37.00 which gives us a price per gram of carbohydrate of 3.8¢ /3.1p

Cheaper than Beta Fuel and does the job

Image shows SiS GO energy drink powder

(Image credit: Tom Epton)


Cheaper than Beta Fuel and does the job


Price per gram of carbohydrate : 3.6¢ / 2.1p
Flavour profile: Multiple flavours, all strongly flavoured
Texture profile: Watery and smooth
Absorbtion technology: Sodium to aid active transport

Reasons to buy

"All in one" sports drink contains carbohydrates and electrolytes 
Good value considering it contains carbs and electrolytes too

Reasons to avoid

Flavours are very strong 

SiS GO energy powder has been around for as long as I can remember. It’s available in a number of flavours including lemon-lime, blackcurrant, orange and tropical. It’s a product that also includes electrolytes. 

I have tried all flavours on this list and, with the exception of orange, found them all easily digestible, although the orange flavouring felt a bit heavy in the mouth. 

With each serving containing 36g of carbohydrates – and the ability to double up – you can easily have an hour’s worth of nutrition in a bottle. A 1.6kg tub of this costs $41.00 £30.00, giving you a pound per carbohydrate value of 3.6¢ / 2.1p.

Everything you need to know

Carbohydrate energy drinks

Image shows a rider filling up a bottle with energy drink powder.

(Image credit: Future)

What are carbohydrate energy drinks?

A blend of carbohydrate, water and electrolytes. Most commercially available sports drinks contain a mix of carbohydrates from different sources (eg. sucrose, glucose, fructose) at a concentration of around 6-8%. They typically come as a powder, to be mixed with water.

Why use carbohydrate energy drinks?

As the body’s primary source of fuel during prolonged and high-intensity exercise, depletion of muscle carbohydrates is one of the primary causes of fatigue, and can severely limit your ability to perform on longer rides.

Studies show that consumption of a carbohydrate drink during rides lasting over 60 minutes is an effective way to boost endurance. By providing the working muscles with additional fuel you can delay fatigue, with some research suggesting up to a 20% improvement in performance during exercise lasting 90 minutes or more.

Ingesting carbohydrates during exercise also has positive effects on the central nervous system, which can provide an additional mental ‘boost’.

How do I use carbohydrate energy drinks effectively?

During rides lasting over 60 minutes, consuming 30-60g of carbohydrate per hour will delay fatigue and help you sustain an optimum pace. One litre of an isotonic carbohydrate drink will provide around 60g of carbohydrate – so aim for around 250ml every 15-20 minutes.

Drinks containing a blend of carbohydrates have been shown to boost absorption and increase the amount of carbohydrate that gets to the working muscles (see 2:1 glucose:fructose).

Avoid concentrated drinks containing more than 6-8% carbohydrate (hypertonic), as these slow the rate at which fluid is absorbed, and can also cause gastrointestinal discomfort.

Are carbohydrate energy drinks better than real foods?

Carbohydrate drinks are a convenient option, which have the added bonus of facilitating the replacement of fluid and electrolytes.

However, this isn’t to say it’s not possible to fuel your rides with real food – in a 2012 study from Appalachian State University, bananas were shown to be as effective as a 6% carbohydrate drink in sustaining power output and performance in a group of male cyclists completing a 75km time trial.

Reliance on carb drinks can be an expensive habit. To get around this consider making a DIY isotonic drink by mixing 200ml ordinary squash with 800ml cold water and a pinch of salt.

Whether you use a carb drink is up to you – the key is to develop a plan which allows you to consume the recommended 30-60g of carbohydrate per hour.

What are isotonic drinks?

Electrolyte drinks containing 6-8% carbohydrate are known as isotonic – they contain the same concentration of dissolved particles (salts and sugars) as body fluids, which promotes hydration.

2:1 fructose drinks

What are 2:1 fructose drinks?

An advanced range of sports drinks, powders, bars and gels containing a blend of carbohydrate in a 2:1 ratio of glucose to fructose with added electrolytes.

Why use 2:1 fructose drinks?

Consuming carbohydrate during endurance exercise delays fatigue and boosts performance, but the amount that can actually be delivered to the working muscles is limited by the rate at which it can be absorbed from your digestive tract.

Current recommendations to consume 30-60g of carbohydrate an hour during prolonged exercise are based on research showing that glucose absorption is capped at around one gram per minute (or 60g per hour), with studies showing that higher concentrations are simply not absorbed, and can result in stomach upset.

However, research focusing on the impact of combining different types of carbohydrate has shown that when glucose is consumed with fructose, carbohydrate absorption can exceed 1.5g per minute, increasing the rate of delivery to the muscles to up to 90g per hour. This is thanks to the fact that fructose is transported and absorbed via a different mechanism than glucose.

Put simply, by combining carbohydrates, you can overcome the 60g per hour saturation rule, which increases fuel availability. But does this translate to better performance? Research suggests yes – in a 2004 trial comparing glucose, glucose/fructose or control (water) beverages in trained cyclists; rates of carbohydrate oxidation were 36% higher with the glucose/fructose beverage versus the pure glucose drink.

In addition, researchers found that the glucose/fructose drink spared the body’s stored carbohydrate, improved water uptake from the gut and reduced the rate of perceived exertion. More recently, researchers at Birmingham University simulating a one-hour time trial after two hours of riding found an 8% improvement in performance when using glucose/fructose beverage, compared to a glucose-only drink.

How do I use 2:1 fructose drinks effectively?

For rides lasting over an hour, try swapping your usual sports drink or energy gel for a 2:1 product to increase carbohydrate delivery from 60g to 90g per hour – this equates to 1,500ml of a drink, three gels or three bars.

Remember, any change in your fuelling strategy should be tried and tested, so don’t make the switch on the day of a competition – work towards titrating your usage upwards from the standard 60g per hour.

Bear in mind that to achieve the stated 90g an hour, you'd need to get through two servings - so either a concentrated mix, or two bottles an hour.

Are 2:1 fructose drinks better than real foods?

Multiple transportable carbohydrates have definite benefits which could translate into that all-important performance edge during an event. The advantage of 2:1 products is convenience and the precise ratio of glucose to fructose for maximum absorption.

Carbohydrate foods do contain a mix of sugars (bananas provide glucose and fructose in a 1:1 ratio), so you could experiment with different sources, although getting 90g of carb in the all-important 2:1 ratio will require some maths.

Electrolyte / hydration drinks

What are electrolyte / hydration drinks?

Hydration drinks are a mix of water and electrolytes (such as sodium and potassium) with little or no added carbohydrate, designed to replace the fluid and salts lost during exercise.

Why use electrolyte / hydration drinks?

As core temperature rises during exercise the body compensates by sweating, creating a loss of water and electrolytes, with additional water lost via respiration. Although the body can cope with small changes in fluid volume, large sweat losses can lead to dehydration, which results in impaired performance, increased heart rate, reduced heat tolerance and lower reaction times.

The loss of electrolytes in sweat (primarily sodium) is also exacerbated during prolonged exercise or in hot weather. Failure to replace electrolytes, or dilution through excessive intake of plain water can result in hyponatremia (low levels of sodium) leading to muscle cramps, lethargy, nausea, headaches and in severe cases, death.

Hydration drinks prevent dehydration by replacing fluids and electrolytes. The addition of sodium also facilitates hydration as it stimulates thirst and also water absorption from the intestine, promoting fluid retention. Due to the dilution of electrolytes, plain water may also suppress thirst, while hydration drinks maintain a desire to drink.

How do I use electrolyte / hydration drinks effectively?

Generally speaking, a specific hydration product isn’t necessary if you’re riding for under an hour, but it can be useful in maintaining hydration in hot conditions, or if sweat loss is high.

If you do choose one, the rule of thumb is to start your ride well-hydrated, and to adopt a regular pattern of drink intake, aiming for 125ml every 15 minutes. This will help to maintain fluid balance.

Remember that if you’re riding for over an hour, you’ll also need to take carbohydrates on board, as hydration drinks don’t contain enough carbohydrates to boost endurance.

Are they better than real foods?

Flavoured beverages increase your desire to drink, and fluid consumption is more closely matched to sweat loss when athletes are offered a flavoured drink over plain water during exercise. In hot and humid conditions they’re an effective way to maintain adequate hydration, although during longer rides you’ll need to consider a carbohydrate source.

On the downside, these drinks can be expensive, and in rides lasting under an hour in relatively cool conditions, good old water will do the job nicely. If you’re not a fan of plain water, you can add a bit of squash and a pinch of salt to your water bottle to increase motivation to drink.

How we test

The testing protocol for these energy drinks was quite straightforward in that I used each of them regularly to fuel my training rides – which spanned shorter, high-intensity interval sessions all the way up to five hour plus rides. As a big part of carbohydrate absorption is your gut being familiar with the particular mix, it means it’s difficult to make a judgement straight away. 

The drinks were judged on their taste, as well as how well the mixtures do when you deviate from the recommended concentrations – because many race and event situations can end up demanding this. 

The value of an energy drink comes from how many grams of carbohydrate you get per money spent. This is calculated for each product.

Tom Epton
Freelance writer

Tom Epton is a freelance writer and data scientist. Originally training as a scientist after completing his studies in physics he realised that cycling was what he wanted to spend his life thinking about. Now he works with manufacturers, athletes and teams using cutting edge data science methods to find performance gains. Tom writes primarily about sport-science and tech!