Welcome to the Specialized family! We’re excited to be a part of your young rider’s journey. Before your rider is ready to Jett, we’ve got two steps to walk through— Fit Tool and Bike Registration. Let’s get into it.

We designed this tool so you can make the Jett as comfortable, safe, and capable as possible. Follow our step-by-step instructions on how to best adjust the bike to your rider’s measurements. Make sure to revisit the Fit Tool about every six months to adjust as they grow, because a better fit means more riding, more often.