Insert Anti Pincement ODYSSEY Optis Insert 700x25 30 avec Double Valve SOFT isolant il assure des relances rapides No CCM il assure des relances rapides et efficaces tout en limitant le poids de l’ensemble The near silent operation combined with a significant reduction in friction improves traction and limits fatigue on long rides this system was notably showcased at the highest level when the Lidl Trek team used it during the 2026 Paris Roubaix the OPTIS (Odyssey Pneumatic Tire Insert System) is an independent pneumatic inner chamber that sits inside the tubeless tyre and inflates to a higher pressure than the tyre itself