The sram pg 1050 10sp road cassette provides the ultimate in strength and precise accurate shifting boasting a wide range of gears for efficient ascending and descending it also has two chainrings for faster shifting and set up with a durable heat treated steel construction the top three sprockets are on a carrier for improved rigidity lm features pg 1050 10sp road cassette from sram wide range of gears for efficient ascending and descending 2 chainrings for faster shifting and