Prepare your 27.5-inch mountain bike for any off-road challenge and ensure outstanding wheel reliability with this premium-grade bicycle inner tube. Specifically engineered for the popular 27.5" wheel size, it perfectly accommodates MTB tire widths ranging from 1.75 to 2.125, making it an ideal choice for modern mountain, cross, and trekking hybrid bikes. Crafted from highly resilient, heavy-duty rubber, it provides enhanced resistance against punctures and pinch flats on rugged, rocky terrains. The tube comes equipped with a classic AV (Schrader) car-type valve featuring a 40mm length. This setup allows for quick and effortless inflation using any standard automotive pump or petrol station air compressor while maintaining an airtight, secure seal.