Not sure about the formula side of things .
I am 90kgs and have HEAPS of fun on the JPSLW with my 7.5 Ezzy Freedride3 ( no cams ) .
Not sure about the formula side of things but I am 90kgs and have HEAPS of fun on the JPSLW with my 7.5 Ezzy Freedride3 ( no cams ) .