Definitely, when a child outgrows a bike, it can be kept for a sibling down the road to use. If the bike is kept in good condition including keeping the training wheels along with other components this is a great way to get the most value out of a bike. In fact, this is a great way to teach a kid to learn to ride on a bike that is handed down or even second hand since the bike will no doubt take a whole lot of wear and tear.