Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
Previous used estimate
$538 - $554
Actual value depends on condition, size, and local demand.

12-month projected trend
2%
Direction and magnitude, not judgment
vs. category average
— %
No category comparison available
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
Diamondback’s Mason is an aggressive, efficient trail tool. This mountain-slaying rig boasts Diamondback's lightweight aluminum frame and rock-conquering 29-inch wheels to climb like a racer, while its tapered head tube, stout 142x12mm rear through-axle, and smooth 140/110mm-travel Fox 34 Talas fork lets you descend like a pro. You’ll also love how the crisp, simple 1x10 Race Face/SRAM drivetrain powers up climbs, and how the Avid Elixir 5 brakes scrub off speed in all conditions. Outfitted with a wide Race Face bar and their stem, a KindShock dropper seatpost, and tough WTB wheels, you’ve got an outstanding package to rail technical trails day in and day out.
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.