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Specifications

  • Carbohydrates: 22g per gel
  • Formula: Isotonic (no additional water required)
  • Carb Source: Maltodextrin
  • Caffeine: None
  • Flavors: Cherry, Apple, Lemon + Lime, Orange, Tropical
  • Use Case: Training and racing, rides 60 minutes and longer

FAQ

What does 'isotonic' actually mean?

Isotonic means the solution has the same osmotic concentration as blood. Standard gels are hypertonic, which draws water from the gut wall to dilute them, causing bloating and cramping. An isotonic gel absorbs directly without that fluid competition, which is why SiS GO causes fewer GI issues than most gels.

How often should I take SiS GO gels during a ride?

For most cyclists, one gel every 20 to 30 minutes during sustained efforts over 60 minutes works well. At 22g per gel, two gels per hour puts you in the 40 to 45g carb per hour range that most athletes absorb comfortably from a single carb source.

Can I take SiS GO gels without any water?

Yes, that is the key benefit of the isotonic formula. You can take them without water on the go. Drinking water separately as part of your overall hydration strategy is still recommended, but it is not required to process the gel.

Best For

Cyclists and endurance athletes who want a reliable, stomach-friendly base energy gel for training and racing. The GO Isotonic is the default choice for most riders before stepping up to Beta Fuel for longer, higher-intensity efforts.

SiS GO Isotonic Energy Gel - Individual Reviews:

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