Overview Reviews Product Description Venom Products 931065-004 Silent Top Sprocket 13 Wide 21T Venom Products 931065-004 Product Videos Custom Field Product Reviews Write a Review Write a Review × Venom Products Venom Products 931065-004 Silent Top Sprocket 13 Wide 21T Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *