KizerKnown for high-quality, innovative products, Kizer is the most renowned and longest-running aggressive and urban frame company on the market. Dedicated to research and development, many of the technology skaters rely on began with Kizer including Kizer, UFS aftermarket frames, CNC machines UHMW frames, Freestyle frames, Big wheel frames, and many other products and materials.Shift UnlimitedFlat, Freestyle, Anti-Rocker - they all have their benefits, and now with the Kizer Shift Unlimited, you no longer have to choose between different frames. This new concept allows skaters to easily switch between wheel setups depending on their needs and personal skating style.Kizer's Shift Unlimited concept features a single base frame skeleton and three different blocks: composite and aluminum flat blocks for street, park, and bowl skating; an anti-rocker block that works perfectly with small anti-rocker (45 to 49mm wheels); and a freestyle block for unencumbered grinds and creativity.Incorporating rocker spacers, the Shift Unlimited allows you to roll on almost any combination of wheel setups, including:The skeleton base frame comes without ANY BLOCKS but all hardware!Designed by Layon Chang / Bra.Flat:Bearing bosses rockered UP - Max 55 mm wheelsBearing bosses rockered DOWN - Max 60mm wheelsHilo (rockered UP outside, rockered DOWN inside) - 60 mm outside, 55 mm insideAntirocker/Freestyle:Bearing bosses rockered UP - Max 65 mm wheelsBearing bosses rockered DOWN - Max 68mm wheelsAntirocker/Freestyle with a recess in SoulplatesBearing bosses rockered UP - Max 68 mm wheelsBearing bosses rockered DOWN - Max 76mm wheels