Product Description Shimano FC-M430 chain guard for the 44-tooth chainring This chain guard is a spare part for the FC-M430 9-speed crank from Shimano. You can attach it to the 44-tooth chainring using the four included bolts. The chain guard is also compatible with the FC-M430-8 8-speed crank as well as with the FC-M430-8-1A model. It prevents your pant legs from coming into contact with the chain while riding and thus protects your clothing from getting dirty. Technical Information:Size:44 TBolt Circle Diameter:104 mmCompatibility:FC-M430FC-M430-8FC-M430-8-1AManufacturer Number:Y1M098250 Contents:1 x 4 x bolts Manufacturer: Shimano Europe B.V. High Tech Campus 92 5656 AG Eindhoven Netherlands info@shimano-eu.com