Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
Previous used estimate
$682 - $701
Actual value depends on condition, size, and local demand.

12-month projected trend
4%
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.
Choose a different build or frame style to see its value.
Diamondback's Mason Pro loves dirt and isn't afraid to admit it. Always at the top of the list for fun big-wheeled hardtails, it’s taking another step forward with the addition of 27.5 Plus wheels with Boost hub spacing. Designed to increase wheel stiffness and add unbelievable amounts of traction, these two technologies are in line with the spirit of Diamondback's premier all-mountain big wheeler. The bike keeps its formed/butted aluminum tubes and slack geometry, but gains even more confidence with a 130mm Fox 34 Float fork and those high volume wide tires grabbing traction on every conceivable surface. The component build is top-of-the-line, with a Shimano XT 11-speed drivetrain, big hydraulic brakes, and a KS dropper post standard. For riders who want to take their mountain biking further, the Mason Pro is the all-mountain hardtail.
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.