Features: Extra wide 116mm split between 2nd and 3rd wheels Deeper recessed axle bolts Super thick center groove Additional material around axles Maximum wheel size outside 60 mm Maximum wheel size flat 56 mm Ground Control has combined the mobility of flat rocker with the grindability of anti, all in one package. You’ve now got the option of a 56mm wheels setup with a 4 finger H-block split! Try it with anti rocker and get all the benefits of a freestyle frame, but with a smaller, more precise groove. GC engineered the XS frame with a slightly harder plastic for a longer, faster, smoother grind feel, also allowing for a stiffer, more responsive ride. GC has incorporated the Featherlite 2 smaller axle head, increasing plastic around the edges, lengthening the life of your frame, and improving the feel while grinding. Overall strength and durability, meant to take the beating you’re ready to dish out. The GC F1 XS is also available in red and black color.