20 x 1.90/2.125 CST Thornproof Inner Tubes

20 x 1.90/2.125 CST Thornproof Inner Tubes
20 x 1.90/2.125 CST Thornproof Inner Tubes

CST rubber inner tubes are designed for use with clincher tyres and rims. A long standing brand, CST inner tubes offer reliability and great value for money.

These 20 x 1.90/2.125 tubes are available with a straight Schrader valve, and are extra thick to be thornproof.

FEATURES
  • 33mm Schrader Valve
  • 20 x 1.90/2.125 Inner
  • Individually boxed
  • Thornproof