Solid rubber/non-pneumatic inner tubes…What did I learn….

In SUMMARY: While there are favorable factors (enumerated below) about running 26”x 1.75-.95” solid tubes I would not do it again due to the difficulty of removing the tubes from the wheels. The fit was so tight that I had to saw and cut the tubes and tire casings to effect removal.

In DETAIL: For my utility/tester/around town ATB (hardtail) I had to try the non-pneumatics first hand to find out if they would really work.
I kept seeing them at Walmart for $20 (now only $18) each and my curiosity eventually had to be served.
Four years ago I could find little to zero information posted from cyclists, pro or con..
My eventual interest was for long distance bike packing and not having to be concerned with the extra tubes/pumps, not to mention the impact of unplanned flats/tube failures.
I have always been able to minimize flats with tube liners, but have not been as fortunate with tubes splitting and valves failing, no matter how much I pay for the highest quality pneumatic tubes that I have been able to find.
Here is what I learned from using solid rubber/non-pneumatic inner tubes (Walmart.com: ‘Bell 26" Solid NOMORFLAT ‘) -
1.   Not too hard to mount, though it did require soapy water as specified by Bell.
2.   Ride was softer. Below 55 degrees F. one of the wheels emitted a slight squeaking noise.
3.   Rolling resistance seemed to be less than or equal to 15% greater subject to ambient temperature.
4.   Weight was probably a pound or so heavier for each wheel compared with heavy duty air tubes with liners.
5.   Really liberating to know one could not have a flat tire no matter where the ride/expedition took me.
6.   Tire treads wore out 3 times faster.
7.   As per above, nearly impossible to remove when I did need to change to new tires.

LIMITS OF 'LEARNING:' Because I never took them on an expedition/tour what I never did learn was how well they would hold up to the stress of days on end under a fully loaded rig, but I thought I should ‘report in’ per the above on that which I did learn. Have any of you been out there on the 'back side of no where' with solid tubes?