2026 Trek FX Sport AL 3

Archived: 2026 Trek FX Sport AL 3 · Hybrid · Published sizes: XS, S, M, L, XL

• Confirm the frame markings and seller description match this archived model. Note every component that differs from the published build.
• Record the frame serial number. It should be legible, unaltered and consistent with the seller’s ownership history.
• Find the size marking on the bicycle and confirm the fit before judging the condition or price.

Archived: Frame: Alpha Gold Aluminum, internal cable routing, rack & fender mounts, post mount disc, kickstand mount, 135x5mm QR · Fork: FX carbon, internal brake routing, fender mounts, rack mounts, ThruSkew 5mm QR · Carbon fiber

• Look for dents or shape changes and inspect the edges of welds around the head tube, bottom bracket, seat cluster and suspension mounts for hairline cracks.
• Stand behind and in front of the bicycle to look for obvious frame, fork or wheel misalignment. Ask directly about crashes, transport damage and repairs.
• Inspect the fork crown, blades, dropouts and visible steerer area. Check that it is straight, securely installed and free of cracks or impact damage.

Archived: Group: Shimano CUES, 10-speed · Shifters: Shimano CUES U6000 w/optical gear display, 10 speed · Rear derailleur: Shimano CUES U6000 GS · Crankset: XS, S, M: Prowheel alloy, 40T narrow-wide ring, 170mm length / L, XL: Prowheel alloy, 40T narrow-wide ring, 175mm length · Cassette: Shimano CUES LG300, LINKGLIDE, 11-48, 10 speed · Chain: Shimano LG500, 9/10/11 speed

• Shift through every available gear under light load. Hesitation, skipping or inconsistent indexing can reflect wear, damage, poor adjustment or mismatched replacement parts.
• Measure chain wear with a compatible gauge and inspect chainring, cassette or freewheel teeth. A new chain does not rule out wear in the remaining drivetrain.
• Turn the cranks slowly, feel for rough bearings and check for side-to-side play. Inspect crank arms, chainring bolts and pedal threads for looseness or damage.

Archived: Brakes: Shimano hydraulic disc, MT201 lever, UR300 caliper

• Squeeze each lever firmly. It should feel consistent and return cleanly. Check levers, hoses and calipers for fluid, inspect pad thickness and contamination, and examine rotors for wear or bending.
• Before riding, test every installed brake separately at walking speed. Each should stop firmly and release cleanly without its control reaching the end of its usable travel.

Archived: Wheel size: 700c · Rims: Bontrager Connection, double-wall, 32-hole, 20mm width, schrader valve · Hubs: (F) Formula DC-20, alloy, 6-bolt, 100x5mm / (R) Formula DC-22, alloy, 6-bolt, Shimano 8/9/10 freehub, 135x5mm · Front tire: Bontrager Girona Comp, wire bead, 60 tpi, 700x42mm · Rear tire: Bontrager Girona Comp, wire bead, 60 tpi, 700x42mm

• Spin both wheels and watch for side-to-side and vertical movement. Check spoke tension, rim condition and hub play.
• Inspect both tire casings for cuts, cracking, plugs, bulges or exposed threads and confirm the installed sizes are safe for the rims and available frame and fork clearance.
• Remove and reinstall or closely inspect both wheel-retention systems. Axles or quick releases should tighten correctly with undamaged threads, hardware and dropouts.

Archived: Headset: 1-1/8'' threadless, sealed cartridge bearings · Seatpost: XS, S, M: Bontrager alloy, 27.2mm, 12mm offset, 330mm length / L, XL: Bontrager alloy, 27.2mm, 12mm offset, 400mm length · Saddle: Verse Short, chromoly rails, 145mm width · Pedals: Wellgo nylon body, alloy cage

• Apply the front brake and rock the bike to check for headset play or notchiness. Inspect the stem, handlebar and clamp zones, then confirm every fastener and control is secure.
• Check that the seatpost moves for adjustment and that the saddle, post and clamp hold securely without cracks, severe corrosion or damaged hardware.

• Before riding, confirm both wheels are secure, tires are safe, both brakes function, and the headset, handlebar, stem, cranks and pedals have no looseness.
• Begin at low speed. Test steering, braking and shifting progressively, then load the drivetrain and suspension only after the basic safety checks pass.
• Listen and feel for repeated knocks, grinding, skipping, brake pulsation or movement at joints. Stop the test if the bicycle cannot be controlled safely.