Are you looking for areliable tubethat will not let you down? TheBicycle Tube CST 16 x 1.9-2.125 AV 48 mmis made of ahigh-quality, durable materialwhich maintains air pressure and reduces the risk of puncture. TheSchrader valve (48 mm)allows for easy inflation and ensureseffective pressure management. This tube is an ideal choice that provides peace of mind and comfort on every ride.Technical description:Long-term air pressure stabilityHighly puncture resistant48-mm Schrader valve (AV)Material:rubberETRTO size:50/57-355Size in inches:16 x 1.9-2.125
