Spec-R R1 2.25mm main chassis & 2.0mm upper deck
Spec-R have two new carbon fibre option parts for the R1 touring car available. First up is a 2.25mm main chassis that offers a less waisted shape than the Pro Spec item for improved flex characteristics. Also new is a 2.0mm upper deck for the R1. The part helps to adjust chassis flex to you liking by mixing and matching it with the different chassis types.
Click here to view the upper deck