Upgrade your cycling experience with these premium bicycle inner tubes designed for 28-inch wheels. These versatile tubes are compatible with tire widths ranging from 35c to 43c (approximately 1-3/8" to 1-5/8"), making them perfect for road bikes and various 700c applications. Constructed from durable butyl rubber, these tubes feature a reliable Schrader valve with a 1.26-inch length for easy inflation. The black tubes come equipped with a 48mm valve stem, ensuring compatibility with most wheel depths. Each tube weighs just 0.3 ounces, striking an ideal balance between durability and weight savings. The package includes inner tubes and comes backed by a 30-day warranty. These tubes are an essential component for maintaining your bike's performance and ensuring a smooth, reliable ride. Perfect for replacements or keeping as spares, these tubes deliver consistent performance and reliable puncture resistance for your cycling needs.