SRAM took the standard cassette and turned it inside out! There are times when the simplest solution is the best one. In hte case of the new OG 1090 Cassette, simplicity also means elegance, efficiency and performance. We took up the challenge of re-engineering the cassette from a component made up of many parts down to stripped-down but exceptionally strong set of cogs that stick firmly to SRAM Red's core principles of lightweight, higer efficiency and maximized technologies. The main cogset of the OG 1090 cassette is machines out of a single forced form that is heat treated and then shapedin a complex series of CNC-guided operations never before seen in this type of application. This is truly a revolutionary design that will take you by surprise with this igenious simplicity. The sprockets themselves (including two free cogs) have all been designed with SRAM's proprietary OpenGlide design for smooth-as-silk up and down shifts. Weight, stiffness and strength-wise, the radical OG 1090 casette delivers titanium's desiravle weight, with solid steel's superior strength and stiffness.
