Duro 26" Bicycle Bike Cycle Inner Tube 26" x 1.75 to 2.125 (Fits all sizes 26" x 1.75, 1.85, 1.90, 1.95, 2.0, 2.1, 2.125) Presta Valve SUPER AIR TIGHT - Less requirement to re-inflate unlike other tubes! PUNCTURE RESISTANCE - Higher quality butyl rubber gives better protection! METAL VALVE CAPS - 3x Higher air retention over plastic caps! SKYSCAPE CAPS WORTH $4.99 - One set (2 Caps) per customer FREE! IN STOCK + FREE P&P - Ready to ship now!