X Tech 20 x 1.5 to 1.75ā³ Tube As used on kids bikes and BMX bikes. Specifications: Size: 20 x 1.50/1.75ā³ American Valve (AV) also known as Schrader (SV) or Car Valve X Tech X Tech manufactures a large range of very affordable bicycle parts and accessories. The Bicycle Store is an authorised dealer of genuine X Tech bike parts and accessories.
