Click to expand Tap to zoom 50X42 Weld Sprocket for X Series Weld Hub 42 Tooth Sale $34.60 SKU WELD50X42 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 50x42 Weld Sprockets Bore to Fit X-Hub 2" Fits #50 Roller Chain 42 Tooth Outside Diameter = 8.720" Pitch Diameter = 8.636" These are Flat Plate Steel Weld Sprockets FREE SHIPPING