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TPU tubes have long been a favorite of ours to keep for spares in your saddle bag because of how little space they take up in the bag. This allows you to carry two tubes when only one would previously have fit. The issue has long been that the plastic valves were susceptible to detaching from the tube itself, the valve cores were often
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A step above other tubes.
Love the attention to detail. I’ve been using TPU tubes from other brands and they are fine but I’ve wanted to upgrade to Silca. The reinforced area where the valve connects is a great idea. I also noticed the beefed up joint where the tube halves are connected. They both went into the tires without much bother. I expect them to perform well and last long.
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Tim · September 24, 2026
They are in fact lighter than butyl tubes, but. . . they don't hold pressure as well. After 10 days of non use, they lose an average of 16psi whereas the butyl would only lose about 6pai. Max recommended psi on my Giant SLR rims is 70psi and I'm running 700x30 Schwalbe One tires. I didn't notice any rolling improvement. Are they worth the extra money? No, unless you're a fanatic for ultra light weight. I didn't feel the 200 total weight savings. My body alone can fluctuate more than that from ride to ride.
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JOHN · September 13, 2026
Very well made. I am glad I spent a bit extra and went with these over all the cheaper Amazon options.
