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.

Source: Spec-R [spec-r.com]