I received my Cyclami order of 4 tubes. I wasn't planning to install a tube right away, but the same day they arrived I also ran over a big rusty nail! So it gave me an excuse to try one out. Anyways first impressions is that it's a bit more sturdier built than the RideNow TPU tubes. The rubber base attaching the valve to the tube is a much winder oval shape, the RideNow tube rubber base is circular and smaller. Also on my 50mm depth wheels, the presta valve head barely peeks out at a length of 60mm, RideNow valve are 65mm. My major disappointment is that the presta valve is non-removable! So if you were to damage the nozzle, the whole tube is a goner! Not sure if it's a weight issue or what since they're using an alloy valve. Besides that issue, the overall tube looks more robust. I'll report back on ride performance, but I'm guessing it'll be similar to the RideNow tube.