Hoping to solve 'mysterious leaks' common in TPU tubes, Rene Herse Cycles launches TPU tubes with metal valves

Even with the all-metal valves, the new TPU tubes are a quarter of the size and a third of the weight of standard butyl tubes

Two clear TPU tubes with black all-metal valves and light blue valve caps with a black Rene Herse Cycles mini pump in the forefront and bottom 1/3 of the frame.
(Image credit: Rene Herse Cycles)

Although tubeless tire setups seem to be all the rage these days, tubes aren’t dead yet. Some professional cyclists continue to favor them, with superstar Lotte Kopecky and the WorldTour team Soudal Quick-Step among the clincher-setup loyalists.

But what's inside those clinchers has been changing of late with TPU inner tubes flooding the market. Made of feather-light plastic (or thermoplastic polyurethane to be exact), TPU tubes are a fraction of the size and weight of regular butyl tubes and have a lower rolling resistance. These tubes are, however, spendier than the butyl standard and come with their own set of problems.

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Kristin Jenny
Freelance Contributor

Kristin Jenny is an elite triathlete based near Boulder, Colorado. Although most of her time is spent in aerobars somewhere in the mountains, she finds time to enjoy eating decadent desserts, hiking with her husband and dog, and a good true crime podcast.