SRAM OG-1090 Cassette has been designed in mind with the core principles of SRAM RED; Lower weight, Higher Efficiency, Maximized Technologies. The main cogset is machined out of a single forged form that is heat treated and CNC Machined. Using OPEN GLIDE design, shifting is smoother and lighter between transitions. Up and Down shifting is smooth as silk.

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Specifications:

Speeds -- 10

Recommended Chain -- PC1090R, PC 1090, PC 1070

Sprockets on Spider -- 3

Lock Ring Material -- Aluminum Anodized

Sprocket Material -- Heat Treated Steel

Cogs -- 26T, 23T

Sizes -- 11-23, 11-26

Weight -- 160gms