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Review title: Didn't work well
Product review: I tried three of these in different sizes for my HED wheel and could never get the seal between the extender and my valve to work well. You can not tighten these hard enough to get a good seal or they strip the threads. I ended up buying extenders where you could take out the core and put it into the extender. They work great; as long as your tube has a removeable core, I would recommend this approach.
