PROVIDENCE — Organizers of cyclo-cross racing say it’s the bicycling equivalent of steeplechase, and the analogy holds true for the varied terrain. But steeplechase riders do not carry their horses over obstacles.Cyclo-cross competitors do carry their bikes — over hurdles, up steep 10-foot wooden ramps and occasionally over their fallen brethren lying in the mud.“Cyclo-cross is 45 minutes of suffering,” explained enthusiast Gary [...]