2025 Cannondale Topstone Carbon 1 Lefty AXS

Archived: 2025 Cannondale Topstone Carbon 1 Lefty AXS · Cyclocross/Gravel · Published sizes: 47, 51, 54, 56, 58, 61

• 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: Carbon fiber · Fork: Lefty Oliver, 40mm travel, lockout, Gen 2 Chamber Damper w/ All-Over tune, ISO High-Ride air spring, tapered steerer, 700c, 55mm offset

• 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.

Archived: Fork: Lefty Oliver, 40mm travel, lockout, Gen 2 Chamber Damper w/ All-Over tune, ISO High-Ride air spring, tapered steerer, 700c, 55mm offset

• Inspect the fork stanchions for scratches or coating wear, look for oil or dirt rings at the seals, and cycle the fork through its travel while checking for binding or bushing play.
• Ask for dated fork-service records. A clean exterior does not establish the condition of internal seals, oil or bushings.

Archived: Shifters: SRAM Rival AXS, 12-speed · Rear derailleur: SRAM GX Eagle AXS, T-Type · Crankset: SRAM Rival DUB Wide, 42T · Bottom bracket: SRAM DUB BSA Road 68 Wide · Rear cogs: SRAM GX XS-1275, 10-52, T-Type, 12-speed · Chain: SRAM GX Eagle Transmission, 12-speed

• Confirm every shift battery charges and every control operates. Shift through the full cassette under light load while checking pairing, derailleur alignment and response at both ends of the range.
• 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: Brakes SRAM Rival hydraulic disc, 160/160mm CenterLine X 6-bolt front, centerlock rear rotors Brake Levers SRAM Rival AXS hydraulic disc

• 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: Reserve 40 I 44 GR Carbon, Turbulent Aero Tech, 24h, tubeless ready · Hubs: (F) Lefty 50, 6-Bolt / (R) DT Swiss 370 LN Ratchet System, 12x142mm centerlock · Front tire: WTB Raddler TCS Light, 700x44c, tubeless ready · Rear tire: WTB Raddler TCS Light, 700x44c, tubeless ready

• Spin both wheels and watch for side-to-side and vertical movement. Check spoke tension, rim condition and hub play. Inspect the carbon rims closely for impact marks, cracks, delamination or damage around spoke holes and bead hooks.
• 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: Acros IS52/40 ICR · Handlebar: Easton EA70 AX, alloy, 16 deg flare, 120mm drop: 400mm (47cm), 420mm (51-54), 440mm (56-61cm) · Stem: Cannondale C1 Conceal, Alloy, 31.8, -6°: 70mm (47-51m), 80mm (54cm), 90mm (56-58cm), 100mm (61cm) · Seatpost: Cannondale SAVE Carbon, 27.2x350mm (47-58), 400mm (61) · Saddle: Fizik Terra Argo X5

• 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.