Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Tern
Previous used estimate
$489 - $503
Actual value depends on condition, size, and local demand.

12-month projected trend
10%
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.
The BYB isn't just a folding bike—it's a whole new way to fold a bike. It's 30% smaller than traditional 20" folding bikes, and folds small and slim enough to fit conveniently into lockers, closets, or any narrow space. When folded, the BYB has one of the smallest footprints of any folding bike. That means a much easier time maneuvering it onto crowded trains and buses or when navigating through busy subway stations. The BYB delivers with a frame engineered for stiffness, larger 20" wheels, and performance components for mixed-mode commuters who do a stretch of their daily journey on a train or bus and demand convenience AND performance. It also has a low-step frame design and resizes in seconds—no tools required—to fit riders between 147 and 195 cm (4'10" – 6'5"), so you can share the bike with anyone in your family. - 30% smaller than traditional 20” folding bikes - Fits conveniently into lockers, closets, or any narrow space - Metro Transit Rack with built-in spinner wheels for easier trolleying - Fits riders from 4'10" – 6'5" - New TFL Joint with 3D interface, DeadBolt design and SpringLock technology - New 3D-forged Physis RF Handlepost - Tern Porter saddle with patented GripPad design - 8-speed Shimano Acera, Shadow RD derailleur BELLS & WHISTLES - BELL: Pitch, brass - CHAINGUARD: Hebie - KICKSTAND: Deluxe center mount - CLIP SYSTEM: AnchorBolt - LUGGAGE SOCKET: Yes - FRONT LIGHT: Opt: Tern Valo 2, integrated, 41 lux/150 lumens - REAR LIGHT: Opt: Deluxe LED - FENDERS: SKS, stainless hardware - RACK(S): Tern Metro Transit Rack - ACCESSORY: Pedal Holder
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.