Tube 700 x 25c/28c 80mm Standard Presta/Valve. 700c bicycle tube, 700c bike tube, track bike tube Tube 700 x 25c/28c 80mm Standard Presta/Valve. 700c bicycle tube, 700c bike tube, track bike tube Tube 700 x 25c/28c 80mm Standard Presta/Valve. We carry over 3,000 bicycle parts and accessories. If you have any questions about any of our parts, please send us an email. sold 1 each