The Maxxis Welter Weight 700X33/50 is a premium butyl rubber inner tube featuring 0.80mm wall thickness, designed for trail riding, commuting, touring, gravel, and everyday cycling. This tube fits 700c wheels with tire widths ranging from 33mm to 50mm, making it compatible with gravel, cyclocross, touring, and hybrid bikes. It comes equipped with a 48mm schrader valve. Weighing just 130g, this tube delivers an excellent weight-to-durability ratio. The Welter Weight series is Maxxis' versatile all-around tube with 0.80mm walls, engineered to deliver superior puncture resistance for aggressive trail riding, daily commuting, and everything in between — the go-to choice for riders who need dependable flat protection without the bulk of a downhill tube. Maxxis tubes are manufactured in Taiwan using rigorous quality control standards, delivering consistent air retention and long-lasting durability ride after ride.