Surly Preamble Fork - 700c QRx100mm 1-1/8" Straight Steerer BlackSurly Preamble 700c Fork 9x100mm QR 1 1 8" Straight Steerer Black. Designed to provide just whats needed and not an ounce more the Surly Preamble Fork is offered in two configurations to accommodate 650b and 700c wheel sizes. It has 51mm I. S. disc caliper mounts accepts fenders and has fork crown and mid blade rack mounts. For commutes and other quests on pavement and gravel the uni crown Preamble Fork rides smooth from punching in to punching out.