Hobby Products International 73829 Main  2.5mm Chassis, Woven Graphite
Sprint 2 owners can now upgrade to a lightweight Woven Graphite Main Chassis. This official factory option part is precision machined from 2.5mm thick graphite for a direct replacement to the stock plastic chassis. Woven graphite is stronger, lighter, and more consistent in high and low temperatures. The result is faster lap times and more consistent performance. It's ideal for the club racer who wants more performance from their Sprint 2.