Click to expand Tap to zoom 50X40 Weld Sprocket for X Series Weld Hub 40 Tooth Sale $35.45 SKU WELD50X40 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart 50x40 Weld Sprockets Bore To Fit X-Hub 2" Fits #50 Roller Chain 40 Tooth Outside Diameter = 8.320" Pitch Diameter = 7.966" These are Flat Plate Steel Weld Sprockets FREE SHIPPING