Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Diamondback
Previous used estimate
$259 - $267
Actual value depends on condition, size, and local demand.

12-month projected trend
8%
Direction and magnitude, not judgment
vs. category average
2%
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.
There was a time when every mountain bike was an all-around hardtail. The Line follows in that great tradition—but that doesn't mean it's some kind of crusty throwback. We've equipped the Line with a cutting-edge frame that's lightweight yet bomber. Stable under pressure, yet playful when you're looking to boost a little air or hit that next corner a bit faster than is, strictly speaking, wise. The Line's modern frame is dressed out in parts that are just as impressive. A Shimano 1x9 drivetrain lets you blaze through the gears with pinpoint precision every single time. Because we know hard-charging riders gravitate to these progressive trail bikes, we've also added a bit more security in the form of a chain guide with roller, a capable SR Suntour XCR 120mm travel fork (with a lock-out for those big climbing days), and powerful Shimano hydraulic disc brakes. Climbs, descents, berms, a bit of jumping: the Line upholds the do-it-all hardtail tradition, without being traditional at all. - Reliable 6061-T6 aluminum hardtail frame with progressive, low-slung geometry for trail riding performance - Custom-formed and butted tubing adds strength without adding weight - Smooth front suspension courtesy of an SR Suntour XCR 120mm travel fork - Shimano 1x9 single-ring drivetrain with chain guide delivers simple, hassle-free performance - 27.5" DP24 Doublewall wheels can take a pounding - Frame is compatible with internally routed dropper posts
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.