Wunderlich - Engine Protection Barl (#18100)The first protection bar made of 32 mm pipe! We chose this dimension of pipe for two reasons: for strength purposes, to protect the R 18 in the best way possible and for aesthetic reasons. This is because only the 32 mm pipe looks balanced and aesthetically pleasing on the R 18 and around the bulky manifold pipes. Additionally, we consciously chose a closed, single piece form for the protection bar that, alongside the dimensions, contributes to the