Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Niner
Previous used estimate
$519 - $534
Actual value depends on condition, size, and local demand.

12-month projected trend
1%
Direction and magnitude, not judgment
vs. category average
1%
Drops faster than category avg
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
Niner's SIR 9 knows all about XC shredding, and when you throw a leg over this steel trail beast, you'll know exactly why. It's quick and nimble with an 853 steel frame, and thanks to the big 29-inch wheels, you float over techy sections with ease you've never felt before. Schwalbe tires stick to corners so you keep your speed up with confidence. Up front, a RockShox Recon Gold fork takes on the chatter with 100mm of travel so you stay in control as you zip down that sketchy line you've always dodged. An ever-reliable Shimano Deore drivetrain gets you going quick and slips effortlessly into the right gear every time too. The SIR is topped off with Niner's tough aluminum components that keep your rig light and strong for years of shredability.
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.