Niner ROS 9 Frameset

What Makes The ROS 9 Tick?

Keep It Steel, Stud. The 4130 Cro-Mo tube set of the ROS 9 is the trusted standard for durability and ride quality. Following the lines and design language of the SIR 9, these tubes have been beefed up to handle the abuse the ROS 9 is designed to shrug off. The super-short chainstays provide a lofty front end feel while the slack HT angle keeps the front end composed at Mach Loony speeds. A neutral BB height can be made low or high to slay YOUR trails by positioning the BioCentric 2 where it will do the most good.

• Rowdy steel radness from the 29er-only mountain bike company
• Zero mm of suspension is efficient in every chaingring
• 44mm OS headtube is compatible with 120-140mm forks
• Aggressive geo is slack and low with extra-short chainstays
• BioCentric II enables perfect singlespeed setup and allows geometry fine-tuning
• Forged frame details and internal dropper post routing
• 142mm x 12mm rear spacing

• Rowdy steel radness from the 29er-only mountain bike company
• Zero mm of suspension is efficient in every chaingring
• 44mm OS headtube is compatible with 120-140mm forks
• Aggressive geo is slack and low with extra-short chainstays
• BioCentric II enables perfect singlespeed setup and allows geometry fine-tuning
• Forged frame details and internal dropper post routing
• 142mm x 12mm rear spacing