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Join Date: Aug 2008
Location: Ann Arbor, MI
Posts: 12,489
Bikes: 15 Kinesis Racelight 4S, 76 Motebecane Gran Jubilée, 17 Dedacciai Gladiatore2, 12 Breezer Venturi, 09 Dahon Mariner, 12 Mercier Nano, 95 DeKerf Team SL, 19 Tern Rally, 21 Breezer Doppler Cafe+, 19 T-Lab X3, 91 Serotta CII, 23 3T Strada
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Troubleshooting a slow leak, I was reminded that I was running Panaracer R’air innertubes in one of my bikes. Thinking of this thread, I threw the 23-25c tube on my scale and got 70g.
I did find a tiny pinhole, which I patched and reinstalled the tube.
They’re extralight butyl tubes, very similar to Conti Race Light, and I can attest to having very good luck with them inside GravelKing 26c. These are wheels which see winter/spring/rain duty, so they get the worst of it in terms of road debris.