Michelin Downhill Racing Inner Tube - 26 x 2.20-2.60 - Reinforced Presta Valve

It has no pitch threads to add a shwab spacer for inner tube valves larger than presta however i came up with a good alternative as you see in the pic , it has a rubber part holding the presta valve silicone sealent & a pump adaptor squeezing the rubber down to stop presta valve from moving