2025 Polygon Urbano 5

Archived: 2025 Polygon Urbano 5 · Folding · Published sizes: ALL SIZE

• 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: ALX FOLDABLE · Fork: ALLOY RIGID FORK · Aluminum

• 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: Shifters: SHIMANO SORA SL-R3000, 9-SPEED, TRIGGER SHIFTER · Rear derailleur: SHIMANO SORA RD-R3000 · Crankset: PROWHEEL OUNCE-253A 53T W/ DOUBLE CHAIN GUARD FOR 2 PIECES BB · Bottom bracket: 2 PIECES BB 68mm · Cassette: SHIMANO CS-HG400 11-32T · Chain: KMC X-9

• 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 MT200 HYDRAULIC DICS BRAKE; Levers: SHIMANO MT200; Rotors: SHIMANO SM-RT26 160mm

• 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: Wheels: ALLOY DOUBLE WALL 28H · Rims: ALLOY DOUBLE WALL H: 28.3mm W: 19.3mm 28H FOR TYRE 451x37 · Hubs: F: ALLOY QR 9x100mm 28H, R: ALLOY QR 9x135mm 28H 6B FOR SPROCKET · Front tire: KENDA K-1177 451x37mm · Rear tire: KENDA K-1177 451x37mm

• 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: ZERO STACK (ZS) THREADLESS, ZS 44/28.6 | ZS 44/30 · Handlebar: ALLOY FLAT HANDLEBAR, W: 560mm, BB: 25.4mm, R/D: 0mm, B: 6degree · Stem: FOLDABLE ALLOY, E: 308 - 430mm, BB: 25.4mm · Seatpost: ALLOY SEATPOST, DxL: 33.9 x 580mm · Saddle: LINC EASE SADDLE · Pedals: FOLDABLE PP CAGE W/ REFLECTOR

• 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.