
Mountain Fuel
Xtreme Energy Tropical Energy Powder
39.8 g of carbs in a 50 g (1.8 oz) serving, from dextrose.
- Carbs
- 39.8 g
- Serving
- 50 g1.8 oz
- Price
- $2.35 a serving
- RC Science Score
- 68out of 100
Mountain Fuel Xtreme Energy Tropical Energy Powder has 39.8 g of carbs a serving and Skratch Labs Super High-Carb Sport Drink Mix has 50 g. Here's how they compare on weight, cost, sodium and the label, and what your race looks like on each.

Mountain Fuel
39.8 g of carbs in a 50 g (1.8 oz) serving, from dextrose.

Skratch Labs
50 g of carbs in a 50 g (1.8 oz) serving, from cluster dextrin and fructose.
numbers from each brand's label, verified by CarbRate
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Mountain Fuel Xtreme Energy Tropical Energy Powder
Skratch Labs Super High-Carb Sport Drink Mix
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Longer bar is better for racing on every row. The lit side wins it.
| Xtreme Energy Tropical Energy Powder | Super High-Carb Sport Drink Mix | |
|---|---|---|
| Carbohydrate | 39.8 g | 50 g |
| Serving weight | 50 g (1.8 oz) | 50 g (1.8 oz) |
| Calories | 179 | 200 |
| Sodium | 102 mg | 200 mg |
| Potassium | not listed | not listed |
| Caffeine | 0 mg | 0 mg |
| Protein | 5.1 g | 0 g |
| Carbs from | dextrose | cluster dextrin, fructose |
| Cost per serving | $2.35 | $5.24 |
| RC Science Score | 68 | 56 |
2 of 4 differ: gluten free and glucose + fructose.
Mountain Fuel Xtreme Energy Tropical Energy Powder
Skratch Labs Super High-Carb Sport Drink Mix
Set your carbs an hour and race length. Both options hit the same target.
| Xtreme Energy Tropical Energy Powder | Super High-Carb Sport Drink Mix | Half each | |
|---|---|---|---|
| Drink mixes an hour | 1.5 | 1.2 | 0.8 + 0.6 |
| Drink mixes for the race | 7 | 5 | 4 + 3 |
| Weight to carry | 350 g 12.3 oz | 250 g 8.8 oz | 350 g 12.3 oz |
| Sodium an hour | 154 mg | 240 mg | 197 mg |
| Cost for the race | $14.17 | $25.15 | $19.66 |
| Half each takes half your carbs from each. | |||
Your own carbs an hour depend on your body and goal time.
Build my free planThree drink mixes that each lead on one thing.

More carbs for the money
High5 High 5 Orange Energy Drink44 g of carbs in 47 g (1.7 oz) · $0.91
Lightest to carry
Maurten Drink Mix 16041 g of carbs in 42 g (1.5 oz) · $2.50
Most carbs per serving
Maurten Drink Mix 32080 g of carbs in 83 g (2.9 oz) · $3.64CarbRate builds your fueling plan from the amount of glycogen you burn, your goal time, your course and the drink mixes you use.