Martin Sprocket 100BS21 2 MSG Roller Chain Sprocket - "BS" FINISHED BORE - 100 CHAIN AND ABOVE

Tooth Hardness: Carbon Steel
Chain Size: 100
Hub Style: B
Number of Teeth: 21
Bore Type: Finished
Bore Size (in): 2
Number of Strands: Single
Weight: 14 lb

Manufacturer: Martin Sprocket
Country of Origin: USA