Combine high quality TPU tubes with Clik valve 0.22mm TPU construction offers a low rolling resistance, responsive ride feel, and resistance to sharp object puncture The reinforced valve-to-tube bond ensures pressure stability and reliable sealing through repeated inflation cycles Tubes are heat tested to 266 deg F to surpass both rim-brake and electric pump heat thresholds Feature reinforced metal-composite valve stems with a removable Clik valve core