Originally Posted by Solara

Racing thicker chassis at the bottom (2.5mm instead of 2mm) for indoor rubber tires are what most of the chassis doing now...so I think thats why WOLF release this version and called it limited...but I still think it is also depends on what motor speed that you are using, for super stock 13.5 and faster, that is the way to go...but if it is for 17.5 and slower, I really dont think 2mm (thinner) lower chassis will hurt the performance...(faster car required more regid chassis..? may be..?)

I still need to find time to open up my NIB E4RS and E4FS, they are like 1 year old now...