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
Including frame, derailleur hanger, single speed insert, cable retention hardware, BioCentric II, headset, YAWYD, seat collar and maxle)
Field a loyal and trusty steed without breaking the bank. Our 3-Star Builds offer the best technical features from each manufacturer with an eye for substance over style. Great for riders who want a sweet bike but know that it's the engine that counts.