The SRAM PG-1130 cassette features heat-treated steel cogs with an aluminum spider, making it durable and cost-effective. It offers PowerGlide tooth profiling for fast and accurate shifting, compatible with PC 1170 and PC 1130 chains. Available in various sizes including 11-26T, 11-28T, 11-32T, 11-36T, and 11-42T. Weights vary by size, with the 11-26T weighing 260g and the 11-28T weighing 271g.