Let's get this out of the way right now. This isn't a step-by-step instructional on how to replace a rear axle bearing, because so many different models use so many different means to hold the axles ...
If your wheels feel rough when you spin them, it's time to service the hubs on your bike. Usually, the problem will be caused by wear in your bearings or by the ingress of water and grime. Wheel ...
Greasing wheel bearings can get very messy very quickly, in a very kindergarten kind of way. The trick is to embrace the ooze, because greasing is the fun and easy part. The hard bit comes when ...