Custom Baum RistrettoThe oversized steel racing bicycle is something of an anachronism, born after materials like aluminum and carbon began to take over the professional peloton. Still, it remains one of our favorite frame construction methodologies, immensely stiff, yet springy and forgiving, a sprinting platform that encourages the pilot to mash the gas pedal harder with unmatched liveliness thanks to enormously thin tube walls. The Ristretto is Baum's 21st century