Maximizing space is key when packing for a trip, which is why the Betst Bikes Aerlite B Folding Bike is a perfect fit. Weighing in at just 24 lbs, the Aerlite B Folding Bike doesn’t require a bike rack. But just because it’s light, doesn’t mean it isn’t tough – the Aerlite B’s welded magnesium tube frame makes it one of the strongest folding bikes on the market. With a three-speed internal hub design, you can make the most of your biking excursions, and the fact that the Aerlite B’s chain is designed to be higher up than most bikes, there is no greasy rear multi-gear grime to mess your RV carpet and clothing. Retails for $359. Betst Bikes.