Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Trek
Previous used estimate
$358 - $369
Actual value depends on condition, size, and local demand.

12-month projected trend
4%
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.
Trek's Superfly SS offers pro-level handling with the let's-go-shred-everyday reliability that only a rigid singlespeed can offer. You'll charge on the light, efficient aluminum frame with proven G2 geometry, tapered head tube, press-fit BB, and sliding rear through axle. Up front, a 15mm through axle connects the rigid carbon fork to the 29-inch tubeless-ready wheels and tires that roll over practically anything. The singlespeed simplicity lets you focus solely on the trail ahead, and it keeps the the bike feather light, too. It also has Shimano disc brakes and Bontrager bar, stem, and seatpost so you're ready for anything from scorching the local trails to winning races on the weekends.
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.