sram red og 1090 cassette1   SRAM (Red) OG 1090 Cassette

The OG 1090 cassette’s main cogset is created out of a single forged form and in a complex series of operations that are CNC-guided, it is then heated and shaped into the finished product. Combining titanium’s weight with solid steel’s unrivaled strength and stiffness, it gives meaning to the words “highly durable”.

  • Lightweight: Innovative CNC‘d chromoly steel construction.
  • Durable: 35% harder than titanium!
  • Stiff: 15% stronger than its competitor.
  • OpenGlide technology allows for smoother transition between gears.

Specifications

Weight155g / 11-23, 166g / 11-26
Speeds10
Recommended ChainPC 1091R, PC 1091, PC 1071
Lock Ring MaterialAluminum Anodized
Sprocket MaterialHeat-Treated Steel
Recommended GroupSRAM Red
Available in11, 12, 13, 14, 15, 16, 17, 19, 21, 23
11, 12, 13, 14, 15, 17, 19, 21, 23, 25
11, 12, 13, 14, 15, 17, 19, 21, 23, 26
11, 12, 13, 14, 15, 17, 19, 22, 25, 28



Technology
The OpenGlide tooth ramping technology makes faster chain transition between cog positions possible. OG was used in this product to ensure higher shift speeds.