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SIS Beta Fuel by Science in Sport is a high-performance endurance drink mix designed to keep cyclists and endurance athletes fueled during their longest and hardest rides. Formulated with a high carbohydrate content and an optimized glucose-to-fructose ratio, it helps deliver a large amount of energy in an easily digestible form. This makes it ideal for road racing, long gravel adventures, marathon MTB events, or intensive training sessions where consistent energy intake is crucial to maintain power and delay fatigue.
Developed with elite athletes in mind, SIS Beta Fuel is gentle on the stomach and mixes easily with water to create a smooth, palatable drink that can be sipped regularly throughout your ride. It is typically used in combination with standard bike bottles, allowing you to carry both hydration and energy in one convenient solution. Whether you are targeting a new personal best, preparing for a big event, or simply want more reliable energy on long days in the saddle, SIS Beta Fuel offers a practical, science-backed way to support sustained performance.
