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Handcrafted in the USA, The Tower System by Bolt It On is a compact, heavy-duty foundation designed for versatility and ease. The Tower base, built from robust 3/16" steel plate, ensures rock-solid stability. Its upright square tubing features multiple precision cut holes for easy height adjustment to fit various tire sizes or machines. Available in L-Track or E-Track configurations, both offer tool-free, simple installation and removal. Compact and space-efficient, The Tower System supports a variety of wheel chocks and accessories, perfect for hauling dirt bikes, sport bikes, e-bikes, mountain bikes, BMX bikes, dual sports, and more.