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Title: Cheapest, Most Reliable Upgrade to Mountain Bikes
Review: I have been through about 12 bicycles in my life, whether they be stolen, sold, or brought up from being in the junkyard and used until the bearings in the crankset gave up, and I've always used the regular Slime intertubes. I never had to replace a Slime intertube on my bikes. It would take the entire tire failing along with the intertube in order to break these. I have rode through anything with confidence that thorns were no match for my tubes, and the slime would destroy any penetrating thorns.
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