11-speed version of the PG1030 cassette. We use a combination of heat treated steel cogs and aluminum spiders. Number of Gears: 11 Gear Ratio: 11-26: 11, 12, 13, 14, 15, 16, 17, 19, 21, 23, 26 11-28: 11, 12, 13, 14, 15, 16, 17, 19, 22, 25, 28 Weight: 260 g (11111160 g) 26),27 0.04 oz (11-28) Recommended Chain: SRAM PC 1130 Chain, Product Color and Size Regard: Product color may look different from the actual product depending on your display settings. Product specifications, logo design, etc. may be subject to change for product improvement. We also cannot answer measurements or personal fit that the manufacturer does not announce. Please be aware of