Drome dominating performance, head-turning style. The Keirin Pro is a slightly lighter frame that is a fighter in the streets. The Weight ranges from 1.70 to 1.98kg for the frame. Keirin Pro is the saint of all bikes! It’s geometry was crafted to win at the highest levels in racing whilst looking like a star. It’s built with double-butted 6000 aluminum and features a hydro-formed top tube and seat tube, integrated headset, smooth welds, and a hand polished finish.