20 x 1 1/8 CST Inner Tubes CST rubber inner tubes are designed for use with clincher tyres and rims. These 20 x 1 1/8 tubes are available with a straight Presta valve.
20 x 1.90/2.125 CST Inner Tubes CST rubber inner tubes are designed for use with clincher tyres and rims. These 20 x 1.90/2.125 tubes are available with a straight Schrader valve.
20 x 2.20/2.50 CST Inner Tubes CST rubber inner tubes are designed for use with clincher tyres and rims. These 20 x 2.20/2.50 tubes are available with a straight Schrader valve.
