FR - Freestyle Frames - BlackFR FREESTYLE FRAMES These new generation frames combine two larger outer wheels for easier wheeling tricks, and two smaller wheels in the center to keep fluidity in freestyle transitions. The center wheels are rocker able, to offer different options and adapt to the flow. 3 sizes available 237mm 90 72 72 90 (4x80mm equivalent) 231mm 84 72 72 84 (4x76mm equivalent) 219mm 80 68 68 80 (4x72mm equivalent)With the rockering system (2nd and 3rd wheels'