Garage Files: Things Even Good Mechanics Can Miss

Things Even Good Mechanics Can Miss

Good mechanics are every bit as valuable as the bikes they’re working on. They know the ins and outs of every bolt they’re torquing and have an understanding of their equipment developed from years of working on it. That said, though, there are some things that even the best mechanics can overlook. Knowing how to fix something is only half the battle. Knowing where to look for the problems is the other—an equally important half.

1-Tubeless tires set up with sealant are the best setup to prevent flat tires from both punctures and pinch flats. That setup loses its magic when the sealant dries up, though. Most tire sealants have a lifespan of about 60–90 days. After that they dry up and lose all their sealing properties.


2-It’s best to remove one tire bead every few months to check the sealant. If it’s dried up, it’s time to replace it. Many riders insist that you can simply add more sealant, but we prefer to remove the old stuff first. This is easily done with a rag and a little elbow grease.

3-There are many good sealants to choose from. This time we’re going to use some Monkey Goo from RedMonkey. It comes in a handy bottle that measures the sealant for you. All MTB tires should use between 60–100 milliliters (2–3 ounces) of sealant. Bigger tires like 29ers will require more, and lightweight XC tires will require less.

4-We prefer to pour sealant directly into the tire like so rather than going through the valve core. Since one of the tire beads is still seated and not removed, seating this tire with a floor pump should be no problem at all. If both beads are removed, or if the tire is particularly loose, a compressor may be necessary to give it a blast of air to seat the beads.

5-Suspension rocker bolts are not on the scheduled maintenance list for many mechanics, but…

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