I switched my TPU tubes to these new ones from AliExpress:
https://www.aliexpress.us/item/3256804682104591.html
They weigh-in at 38g and use a threaded alloy valve stem. The base also has a wider rubber seal to help prevent any tears at the valve stem compared to the RideNow tubes. Overall they seem pretty sturdy, but the only downside is that presta valve core isn't removable which will be an issue for deep dish wheels. 50mm depth is the max before needing to use valve extenders.
Between these new TPU tubes and some lightweight Panaracer Agilest slicks I recently picked up, I was able to cut about 7 seconds on a sprint segment I've been trying to best this year.