🚲 Ride with Confidence: Never let a puncture slow you down! CST, the owner of Maxxis, ensures quality and reliability. Always have a spare tube on hand for puncture-free rides. Weighing only 160 grams, lighter means faster! Experience a smooth ride with uniform roundness. Perfect for both road and gravel bikes. 3 valve lengths 160g lightweight 700C compatibility The Upten CST Road Bike Inner Tubes are designed for 700C gravel and road bikes, featuring seamless construction for a smooth ride. Weighing just 160 grams, these lightweight tubes come in three valve lengths (48mm, 60mm, 80mm) and are made from durable butyl rubber. Always be prepared with a spare tube to keep your cycling adventures uninterrupted.