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GU Roctane Gels
GU Roctane Gels
6 for £10
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Try Beta Fuel
Try Beta Fuel
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TORQ Explore Flapjacks
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Try Rawvelo
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GU Energy Chews
4 for £8.50
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BOLT Energy Chews
4 packs for £7.95
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No Gut Bombs
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Try Applied Nutrition
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SiS Trial Pack Beta Fuel Pack Beta Fuel Pack XMiles

Beta Fuel Pack

Visit the SiS store

Save on Science in Sport

Fuel your sessions this month. Ends 30th June.

Push your limits with the SiS Beta Fuel Pack, curated by XMiles for athletes who demand peak performance from their fuelling strategy. Designed for long-duration endurance efforts, this pack includes a comprehensive selection of Beta Fuel products, all tailored to deliver the optimal 1:0.8 carbohydrate ratio.

  • Scientifically backed 1:0.8 carbohydrate ratio improves energy uptake and reduces stomach discomfort
  • Includes energy drinks, gels, chews, and nootropic-enhanced gels for complete fuelling flexibility
  • Supports both physical endurance and mental clarity during long efforts
  • Trusted by elite athletes and proven in real-world performance scenarios
  • Designed to fuel sessions lasting over two hours

Beta Fuel Pack

Visit the SiS store

611.38 kr
Mix & Match
member exclusive price

or 3 interest-free payments of with

Klarna
Type:
BBE
Translation missing: en.general.icons.icon_check_circle icon 15 in stock, ready to be dispatched

How to use?

Take 1-2 products per hour during training or racing, depending on duration and intensity.

Calculate how much you need here ›

When to use?

Ideal for sessions and events lasting over 2 hours, such as long runs, rides, races or brick sessions.

Why do I need this?

It provides sustained, easily absorbed energy to keep you going stronger, for longer.

Who uses this?

Endurance athletes including marathoners, triathletes, ultra runners and cyclists who need a reliable fuelling system.

Description

Each product plays a unique role in your fuelling plan, from quick-on-the-go energy boosts to consistent carbohydrate intake across hours of training or racing.

WHAT'S INSIDE?

  • 4 x Beta Fuel + Nootropics Dual Gel
  • 4 x Beta Fuel Gel
  • 9 x Beta Fuel Energy Drink
  • 6 x Beta Fuel Energy Chews

At the core of the Beta Fuel range is its dual-source carbohydrate system, combining maltodextrin and fructose to fuel you more effectively for longer efforts. Whether you're training for a marathon, taking on a triathlon, or going deep into the mountains on a long ride, this pack ensures you're properly fuelled across every stage of your session.

The Beta Fuel + Nootropics Gel adds a smart twist to endurance fuelling, combining carbohydrates with Cognizin® Citicoline to support cognitive performance, ideal for staying sharp during long events. The Beta Fuel Drink provides 80g of carbohydrates per serving, delivering maximum energy with minimal stomach upset, while the Chews and Gels give you flexible fuelling options that are easy to carry and consume on the move.

Whether you're looking to dial in your fuelling for race day or explore the full SiS Beta Fuel range before committing to a specific product, this pack offers the ultimate introduction to one of the most advanced energy systems available today.

How does it work

The Beta Fuel system is built around a 1:0.8 maltodextrin-to-fructose carbohydrate ratio, designed to increase the rate of carbohydrate absorption while minimising the risk of stomach upset. Traditional energy products often use a single source, which can lead to a bottleneck in the gut and reduced uptake. By combining two types of carbohydrates that use different transport mechanisms, Beta Fuel enables higher carbohydrate delivery up to 90g per hour, and reduces the chance of gastrointestinal distress.

The inclusion of Cognizin® Citicoline in selected gels adds cognitive support, helping to maintain focus, coordination, and mental clarity during prolonged exercise. This smart fuelling approach means you’re not just feeding your body, you’re supporting the brain too, which becomes crucial in the later stages of long endurance events.

Nutrition

Beta Fuel Pack

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Amount Per Serving

Ingredients

About SiS

SiS believe that the most sophisticated piece of sports equipment you’ll ever own is your body. If you don’t put high performance sports nutrition in, you won’t get your full potential out.

Their range of products are researched and developed by sports scientists in conjunction with international athletes. This scientific research underpins everything we do to ensure that all our products meet the exacting standards of Informed Sport. This means that everything we do and every personal best you achieve with us, is FUELLED BY SCIENCE.