“TPU is the way to go, extremely light in the wheels but also to carry as a spare. Does lose a few PSI more then standard tubes as mentioned across various sites, won’t change from TPU”
“Saved about 60g over a butyl tube. Followed the instructions to inflate first to max 8psi and check for leaks (none), carefully installed and it’s been going well for over a week. Small and light. Pleased to be having success with the first TPU tube.”
