30g of carbs in a rice crisp square. Eat it before the gun.
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Per bar. Final figures confirmed by lab testing before launch.
You're nervous, you're not hungry, and the gun is hours after breakfast. The bar fills the gap.
Your usual, the one you've tested on long runs.
In the start pen or on the way. 30g of carbs, easy on a nervous stomach.
First 10K 5 to 10 seconds a K slower than goal.
Then 30g every 30 minutes, with water.
Final recipe in testing. The waitlist gets the full label first.
Most race mornings run on whatever survived the hotel breakfast. Here's how the options stack up before the gun.
| ERN Carb Bar | Banana | Porridge | Gel in the pen | |
|---|---|---|---|---|
| Carbs, counted | 30g | about 25g, depends on the banana | needs a kettle and a bowl | 20 to 40g |
| Eats like food when you're nervous | ✓ | ✓ | ✓ | ✕ |
| Survives a squashed kit bag | ✓ | ✕ | ✕ | ✓ |
| Tastes like a treat | ✓ | ✕ | ✕ | ✕ |
| Short ingredient list | 8 ingredients | ✓ | ✓ | varies |
Nerves kill your appetite, and porridge doesn't sit well an hour out. A rice crisp square does. 30g of carbs, counted, so your first hour runs on a full tank.
Chewing at race pace is hard work. From 20 minutes in, it's 30g of gel every 30 minutes with water, like in our videos. The bar has done its job by then.
Keeping the inside crisp for weeks without adding anything you can't pronounce is the hard bit. Every failed batch goes on Instagram.
Rest in pieces.
Watch on Instagram →
Photo: Luke and Jamie, ideally in the kitchen with a tray of barsWe're Luke and Jamie. We've done marathons, ultras and Hyrox, and we've stood in a lot of start pens with nothing we wanted to eat.
We make the marathon videos you may have seen, and we're making this bar because we wanted it ourselves. Ask us anything about it. We read every reply.
When the first batch is ready. The waitlist gets the date first, before we post it anywhere.
We'll tell the waitlist first. Everyone on it gets the founding price.
We'll confirm where we deliver to the waitlist first, before launch.
We wouldn't. Chewing at race pace is hard work. Eat the bar before the start and use gels once you're running.
No. The gelatine is beef. The full allergen label goes to the waitlist with the final recipe.
Get on the list and you'll hear first, with the founding price.
Join the waitlist →