2025 Bianchi Zolder PRO GRX 610 1x12sp

Archived: 2025 Bianchi Zolder PRO GRX 610 1x12sp · Cyclocross/Gravel · Published sizes: 48, 50, 52, 54, 56, 58

• 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: Zolder Pro carbon cyclocross disc brake flat mount, press fit 86.5×41 headset 1.5″ – 11/8″, thru axle 12×142 sizes 48-50-52-54-56-58-cm · Fork: Full carbon 1.5″ – 11/8″, disc brake flat mount, 1.5″ – 11/8″, thru axle 12×100 · Carbon Fiber

• Inspect the frame in bright light, especially the head tube, bottom-bracket area, chainstays and clamped surfaces. Look for cracks, ripples, crushed sections or signs of impact.
• 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 GRX 610 12sp Hydraulic disc brake · Rear derailleur: Shimano GRX 820, 12 speed · Crankset: Shimano GRX 610 12sp FC-RX610-1, GRX, 12-speed, 2-pcs FC, 170-172.5-175mm, 40T Crank Length: 170mm-48/52, 172.5mm-54/58 · Bottom bracket: Token Ninja Lite BB4124PS, for 24mm spindle, with premium bearings, threaded design · Cassette: Shimano 105 12sp 11-34T 11-12-13-14-15-17-19-21-24-27-30-34T · Chain: Shimano CN-M6100,12 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 BR-RX410 flat mount hydraulic disc brake included in the shifter; Rotors: Shimano SM-RT70 rotor for disc brake center lock , with Ice Technology, S 160mm (front&Rear)

• 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 · Wheels: Velomann V30R, alloy, 23mm channel, 30mm profile. 2 to 1 spoke pattern, j-bend spokes, black, HG11 boby, weight : 1790g · Front tire: Vittoria Terreno Mix 33-622/700x33c G2.0, nylon 120TPI, TLR reinforced, color black/black antracite · Rear tire: Vittoria Terreno Mix 33-622/700x33c G2.0, nylon 120TPI, TLR reinforced, color black/black antracite

• 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.
• Confirm whether the bike is actually set up tubeless, whether both tires hold pressure, and when sealant and rim tape were last serviced.

Archived: Headset: Fsa Orbit C-40-ACB ; NO.42/ACB, Sealed 1-1/8 ACB Top, 1.5″ ACB Btm ; Standard 15mm top cover alloy · Handlebar: Velomann RA35A Compact, Flat Top, alloy 6061 diam. 31,8mm, reach 80mm, drop 130mm, Size: 400mm- 48~50cm; 420mm-52~58cm ,440mm-58cm · Seatpost: Velomann SP67T.C carbon shaft UD finish, forged alloy head, 15mm offset L350mm, 27,2mm · Saddle: Selle Italia Model X SuperFlow

• 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.