Overview Reviews Product Description Vortex 3520-18 18-Tooth 530-Pitch Front Sprocket, Black Vortex 3520-18 Product Videos Custom Field Product Reviews Write a Review Write a Review × Vortex Vortex 3520-18 18-Tooth 530-Pitch Front Sprocket, Black Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *