Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
Previous used estimate
$1,419 - $1,460
Actual value depends on condition, size, and local demand.

12-month projected trend
— %
Direction and magnitude, not judgment
vs. category average
5%
Drops faster than category avg
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
Diamondback's Serios AF is a full carbon marvel, designed in collaboration with engineers from HED and KQ Studios, wind tunnel and ergo experts. In the real world of crosswinds and corners, this bike delivers a ride like none other. Unidirectional fibers allow for an ultralight and responsive ride, giving nimble and solid ride characteristics. The straight line speed of this bike is eclipsed only by its ability to corner. An adaptable fit ensures you’ll be concentrating on your cadence instead of a fatiguing body position. Finshed out with full Dura-Ace, HED Jet wheels, and HED Corsair bars, it features components that are right on track for setting new records.
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.