BOX ONE ALUMINUM 7075 COG 3/32"

Box One Single-Speed Aluminum Cogs are 7075-T6 aluminum alloy. It's designed to fit Shimano™ compatible cassette hubs and has a 5mm wide inner base, giving a more solid interface with the cassette body. The alloy cogs are anodized black with laser-etched graphics. FEATURES Shimano™ Compatible Driver 7075-T6 Alloy 3/32" or 1/8" Chain Compatible Lightweight  SPECIFICATIONS Material 7075-T6 Aluminum Other Laser-etched logos Weight 13t: 8 grams / 0.3 ounces 14t: 11 grams / 0.4 ounces 15t: 13 grams / 0.5 ounces 16t: 14 grams / 0.8 ounces 17t: 16 grams / 0.6 ounces 18t: 18 grams / 0.65 ounces