When your kiddo is ready to get serious about racing, consider the mid-price yet high-value Redline Proline Junior. The Proline Junior is made with a Redline proprietary aluminum alloy frame with a sealed Euro bottom bracket, higher-end 3-piece cranks, and sealed hubs. The 100 percent chromoly steel race fork with tapered legs helps young riders maneuver the Proline Junior more easily. The combo saddle/seatpost is lightweight and easy to use. Fits riders 54 to 61 inches tall.