2022 Polygon Impression AX Disc

Archived: 2022 Polygon Impression AX Disc · Tandem · 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: AL6 TANDEM, 10X135MM · Fork: HI-TEN STEEL RIGID FORK · Steel

• Inspect the complete frame for cracks, dents, distortion, heavy abrasion, suspicious paint differences or evidence of a previous repair.
• 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: Fork: HI-TEN STEEL RIGID FORK · Rear shock: -

• Inspect the shock shaft and seals, cycle the rear suspension through its travel and check for oil, air loss, binding or unusual top-out and bottom-out noises.
• Hold the rear brake and load the suspension from several directions. Check pivots, bearings and mounting hardware for knock, looseness or side play.
• Ask for dated shock and pivot-service records. A clean exterior does not establish the condition of internal seals, oil, bushings or bearings.

Archived: Shifters: SHIMANO ST-TX800-8R · Rear derailleur: SHIMANO RD-M310 ALTUS · Crankset: PROWHEEL MAA543 42/34/24 x 170MM · Bottom bracket: FP-B908N · Cassette: SHIMANO CS-HG31 ALTUS · Chain: KMC HV-408

• 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: TEKTRO MD-300; Levers: TEKTRO MD-300

• Inspect pads and braking surfaces, check the complete cable or hose path, and confirm both controls feel consistent and return cleanly.
• 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 RIMS W/ALLOY HUBS · Front tire: PERFORMANCE TIRE 27.5"X2.10" · Rear tire: PERFORMANCE TIRE 27.5"X2.10"

• 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: FP-H863 ALLOY CAGED BEARING · Handlebar: ENTITY OE ALLOY WIDTH 680MM, RISE 40MM, BARBORE 31.8MM · Stem: ENTITY OE ALLOY STEM 31.8MM · Seatpost: ENTITY OE ALLOY SEATPOT 27.2mm x 350mm · Saddle: ENTITY SADDLE · Pedals: PLASTIC PEDAL

• 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.