I show how to take apart the bottom bracket of a bike with a one piece crank, clean everything, install new bearings, lube it and put it back together again. The grease I use is just a good quality automotive type grease. This bike is a GT Bullet 24 inch kids mountain bike. I got it for free, but it was very dirty and rusty. I was concerned water had gotten into the bottom bracket. But everything actually looked pretty good.
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