Bikes: The gearing system of mountain bikes should be kept free from rust thus they run without problems. Brush off any excess mud with a scrubbing brush and warm soapy water - totally to the whole body of this bike. It is not exactly natural, but the ideal way to keep a motorbike chain and gearing system well lubricated is to employ a old car engine oil - can have the advantage of being sustainable, as it avoids old car oil going in the landfill. A regarding people enjoy in joining ...