Hey yea guys the chassis was cut to replace the plastic bottom of the case. The pocket that the internals of the speedo sit in is about 2mm in depth. Flex analysis was almost identical to stock once the speedo was tightened down. It works well and the speedo ends up only being 11mm tall. I don't run a booster or Rx pack. Also, I use associated r5 steering blocks. Hope this helps. Any other questions just ask. Thanks