Microshift Road Bike Rear Derailleur Compatible with Shimano 9 Speed
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microSHIFT
{"Item Package Dimensions L x W x H": "6.65 x 3.78 x 2.87 inches", "Package Weight": "0.27 Kilograms", "Item Dimensions  LxWxH": "3.54 x 2.76 x 2.36 inches", "Brand Name": "microSHIFT", "Part Number": "RD-R42S", "Date First Available": "September 14, 2017", "Brand": "microSHIFT", "Auto Part Position": "Rear", "Mounting Type": "Clamp-On Mount"}