Abstract: A bicycle safety turning device for installation upon a bicycle frame lower cross bar adapted to be engaged by the bicycle front wheel fork shoulder to limit the front fork from turning so far to the left or right as to be at a right angle to the forward movement of the bicycle and cause the bicycle to jackknife while riding. More specifically, the bicycle safety turning device consists of a pair of clamp members adapted to surround the bicycle frame lower cross bar, capped with clamp plates, and a pair of bolts bringing the two clamp plates and clamp members together, the bolts also holding a striker plate against which the front fork shoulder comes in contact after the front fork has turned through an arc of 35 to 45 degrees as desired. Encountering the striker plate, the fork is prevented from further turning.