OK, Quick update on the Ride Now TPU Tubes 700 x 18-32mm used in 700x23 tires Rubino Pros
2 weeks since receiving, ridden 4 times spread over the 2 wks, roughly 35 - 40 mi/ride.
no issues, 1st ride was at 75 psi frnt, 78 rr (I'm 142 lb/ 64 kg) on a set of HED Ardennes. 2nd thru 4th rides at 72 psi /75 psi
no flats, really didn't vary much from the Butyl 'feel', once I aired down a hair. wheels do feel as thought they spin up a bit quicker - but that could be because I'm finally getting some recent relief from now being off the 3+ years of regular chemo.... LOL!
seems to hold air quite long time - I checked air pressure before every ride and never varied by more than 1-2 psi - which could be because putting the JAYCO pressure gauge to the valve always seems to release a bit of air... same when I take off the pump head...
I think I would see a greater difference if I was going from a greater difference in weight from larger/heavier Butyl to TPU, like gravel or mtb tubes...
...still, I like them - will order the 4x AliExpress deal...
Ride On
Yuri