Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Niner
Previous used estimate
$607 - $624
Actual value depends on condition, size, and local demand.

12-month projected trend
4%
Direction and magnitude, not judgment
vs. category average
4%
Drops faster than category avg
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
Choose a different build or frame style to see its value.
The stable and successful middle child in Niner’s AIR 9 family, the AIR 9 Carbon delivers race-bred speed and handling while leaving some cash in your pocket to buy dinner for the friends you embarrassed on race day. Using a slightly simpler carbon layup and material, the AIR 9 Carbon benefits from the same extensive refinement and testing that went into the AIR 9 RDO. The result is a slight difference in weight but the same fast, responsive ride you expect from Niner. The rigid sides of the down and top tubes maximize torsional stiffness, while the flat sections on each tube act as leaf springs for a buttery-smooth ride. Combine these elements with Niner’s proven 29er geometry, and you have a race machine that’s ready for the abuse of everyday riding. The AIR 9 Carbon 2-Star brings you toe to toe with your comfort zone, then rips over the line and carries you to what lies beyond. To make sure you get there, Niner installed a RockShox Reba RL Air fork to dutifully soak up 120mm of chunder and firmly stick the fast-rolling, tenacious Maxxis Ikon tires to your line of choice. SRAM delivers a streamlined, thorough range of gears in a precise-shifting GX1 drivetrain so you can find the gear you need to spin up any climb. SRAM’s DB5 hydraulic disc brakes offer easy modulation, which translates into greater speed, longer acceleration zones, and less momentum loss. Choose the 2-Star build for a no-nonsense hardtail with a thoroughbred lineage.
Inspection
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Inspection
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Confirm fork and rear shock service intervals and check pivot bearings for play.