Q-Tubes 700c x 18-23mm 60mm PRESTA Valve Tube 101g
If you aren’t running tubulars or tubeless, chances are you need new tubes on hand during a training ride. Stock up on the 700c x 18-23 Q-Tubes to keep in your seatpost pack or your commuting panniers so you can play ‘Good Samaritan’ on the bike path. They’re produced by Kenda for QBP so you know they’re high quality and will work just fine in your bike. The presta valve stem is 48mm long and should allow easy inflation with most low profile semi-aero rims.
Based on prior reviews I bought 2 700×18-23 80mm and 3 700×23-25 60mm tubes. I installed 2 new Q-tubes 700×18-23’s along with a new tire in the front, rotating the front to the rear. I use Conti Gatorskins and fill to 110 psi. After installing the tubes I went for a ride. 3 miles in the front tube went flat. I removed the tube and discovered a blown out seam. Installed a new one and while pumping it up the seam blew out again. Great, 2 tubes shot in less than 30 minutes. Installed a 3rd…
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Based on prior reviews I bought 2 700×18-23 80mm and 3 700×23-25 60mm tubes. I installed 2 new Q-tubes 700×18-23’s along with a new tire in the front, rotating the front to the rear. I use Conti Gatorskins and fill to 110 psi. After installing the tubes I went for a ride. 3 miles in the front tube went flat. I removed the tube and discovered a blown out seam. Installed a new one and while pumping it up the seam blew out again. Great, 2 tubes shot in less than 30 minutes. Installed a 3rd…