The Surly Steamroller is our street-smart steel fixed gear or single speed. It’s designed to hustle from A to B and hold up to all the potholes, construction zones, and bike-rack battle scars along the way. This classic is back as a frameset only for a limited time. Road bike geometry with track bike features: 120mm rear spacing, track-legal BB height, track crank compatible 100% Surly 4130 chromoly steel frame and fork; double-butted main triangle, TIG-welded 1-1/8" threadless chromoly steel fork, brazed Fork and seatstay bridge drilled for mid-reach (47-57mm) caliper brakes Brake cable stops for cleaner rear brake routing 700c x 38mm maximum tire clearance without fenders (32mm with fenders) One bottle cage mount Frame is powder coated for a durable finish and E.D. coated for rust resistance