𝐏𝐞𝐫𝐟𝐞𝐜𝐭 𝐅𝐢𝐭 𝐟𝐨𝐫 𝐘𝐨𝐮𝐫 𝐌𝐓𝐁: Specifically designed for 29 mountain bikes, Corki Cycles 29'' inner tubes come in three sizes (1.75-2.125, 1.95-2.125, and 2.125-2.4) to ensure a snug fit for your ride. 𝐒𝐜𝐡𝐫𝐚𝐝𝐞𝐫 𝐕𝐚𝐥𝐯𝐞: Equipped with a reliable Schrader valve (32mm), Corki Cycles inner tires make inflation and deflation a breeze, providing convenience for every mountain biking adventure. 𝐃𝐮𝐫𝐚𝐛𝐥𝐞 𝐚𝐧𝐝 𝐇𝐞𝐚𝐯𝐲-𝐃𝐮𝐭𝐲: Crafted from durable butyl rubber, our MTB inner tubes are designed for rugged terrain, providing longevity for your off-road biking adventures. 𝐂𝐨𝐫𝐞-𝐑𝐞𝐦𝐨𝐯𝐚𝐛𝐥𝐞: Simplify your bike maintenance routine. Our inner tubes feature a core-removable valve, allowing for easy inflation, deflation, and valve replacement. 𝐐𝐮𝐚𝐥𝐢𝐭𝐲 𝐂𝐨𝐧𝐬𝐭𝐫𝐮𝐜𝐭𝐢𝐨𝐧: Engineered for performance, our 29 mountain bike inner tubes boast a metal stem, adding a layer of sturdiness and reliability to enhance your cycling experience.