New Pinion Single-Speed Cogs are now offered in two different materials: CNC-machined from long-wearing 7075-T6 aluminum alloy or CNC-machined chromoly. 3/32in cogs are available in 13 to 18-tooth sizes. Both types are designed to fit Shimano-compatible cassette hubs and have a 5mm wide inner base, giving a more solid interface with the cassette body. Alloy cogs are anodized black with laser-etched graphics, while chromoly cogs are electro plated black with laser-etched logos. Material 7075-T6 Aluminum, Chromoly 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