Optional graphite chassis brace for saddle packs allows the removal of the top deck to reinforce the chassis. The brace is installed in the lower part of the composite brace connected directly to the chassis. By removing the top deck and using these optional braces, the car generates more traction. There are various mounting points (screws) which allow for further flex adjustment. Suitable for both 2mm and 3mm chassis depending on the track and traction conditions.