Hutch modern-technology 20" wheel set includes Hutch chrome-plated 36H aluminum double-wall rims with welded seam and steel eyelets, polished stainless steel spokes, and nickle-plated cassette hubs for the mag/ti look with 3/8" front axle 14mm rear axle and 9T cog driver. The Hutch rims and hubs are exclusive Hutch designs and not found elsewhere under any other brand.