IMPAC is the name economical tire and tube range that have been produced by SCHWALBE to compete with other economical brands, which quality isn't always very high. IMPAC can offer better quality at low prices. Quality inner tube for 28" trekking/city/hybrid bicycle tires with standard AV valve.
For tire sizes from 28x1.10 to 28x1.75 (from 28-622 to 47-622)
Also fits 28x1-1/2 (40-635) and 27x1-1/4 (32-630)
Valve: Schrader (AV) with thread
Valve length: 40 mm
Weight: 190 g