The Columbus Oversize Lug Set includes all essential parts and accessories to build a classic lugged steel road frame with oversized tubing. Designed for tubes with diameters between 28.6mm and 31.7mm, this kit is ideal for framebuilders seeking premium quality components for their custom builds. Perfectly matched with the Columbus Spirit tube series, the Oversize Lug Set offers precision and durability for constructing vintage-style road frames with modern oversized tubing.