Optional graphite framework brace for saddle packs allows the removal of the very best deck to strengthen the chassis. The brace is installed in the lower the main composite brace linked directly to the framework. By detatching the most effective deck and using these optional braces, the automobile creates more traction. There are many mounting points (screws) which allow for further flex modification. Appropriate both 2mm and 3mm chassis with regards to the track and traction conditions.