Lifeline Inner Tube-700C x 28-35mm Designed for road bike. Crafted from durable rubber for long-lasting performance, it's an essential item for cyclists seeking dependable performance and peace of mind on the road or trail. This LifeLine inner tube is perfect for keeping in saddlebag or workshop, make sure you're always ready for the unexpected. Specification >Presta Valve : 48mm >Rim : 700C >Width : 28-35mm >Inner diameter : 622mm