Comparison : Item # 2042B8, Large Roller Double Pitch Sprocket for C2042 Chain - 1" Pitch
Item # 2042B9, Large Roller Double Pitch Sprocket for C2042 Chain - 1" Pitch
Item # 2042B10, Large Roller Double Pitch Sprocket for C2042 Chain - 1" Pitch
Item # 2042B11, Large Roller Double Pitch Sprocket for C2042 Chain - 1" Pitch
Item # 2042B12, Large Roller Double Pitch Sprocket for C2042 Chain - 1" Pitch