Maurten positions Solid for preloading carbohydrates before training or racing, for low-to-medium intensity endurance sessions running past the 2 hour mark, and for replenishing stores after hard efforts. The low-fiber oat and rice base is the reason it works close to a start line where a standard granola bar would not. Worth knowing: chewing takes more work at a high heart rate than squeezing a gel, so most riders slot these into the steadier stretches — the valley roads, the neutral start, the drive home — and keep gels for the parts where breathing is the priority. Chewable fuel also pairs with plain water rather than a carbohydrate drink, which keeps total intake where you planned it.

Ingredient lists are short and nearly identical between the two. Both build from fructose-glucose syrup, gluten-free oats, maltodextrin, rice flour, sugar, sunflower oil, rice bran, salt, lecithin, and rice extract, with the C version adding fat reduced cocoa. Both are gluten-free, and both may contain traces of milk, soy, wheat, nuts, peanuts, and sesame, so check that against any allergy before committing to a full box. Storage is uncomplicated: room temperature between 10 to 30°C (50 to 85°F), and the bars travel through airport security without issue.

Boxes ship with a minimum shelf life of 4 months from delivery, which is enough runway for a 12-serving carton once the bar has a fixed place in your routine. The carton measures 248x158x45mm and holds 660 grams of product, so it stores easily in a gear bag or alongside the rest of the fuel stash.