The Sram Red OG-1090 10 Speed Cassette is a high-quality steel cassette with a color of red, designed for road and racing bikes. It includes 10 speeds, with the smallest sprocket being 11 teeth and the largest being 26 teeth. This cassette is compatible with Shimano Road freehub/driver type and is lightweight at 161 grams. Made in the United States by brand SRAM, this cassette is a reliable and durable component for your cycling needs.