NOT KNOWN FACTS ABOUT ENGINE BIKE KIT 100CC

Jockey wheel: certainly one of two tiny sprockets in the rear derailleur that guides the chain onto the cassetteAlloy refers to aluminum alloy within the bicycle industry. As its name implies, an alloy can be a solid Answer made up of two metals, In such cases, aluminum and iron.There's two jockey wheels inside of a bicycle’s rear derailleur, but