Topstone Carbon 4

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          Nothing is impassable

          The best gravel bike for anything from dirt roads to singletrack trails. With the grip and comfort of the Kingpin suspension, nothing is off-limits.

          Where it thrives

          Gravel and Dirt Roads, Rough Pavement, Trails

          What it's built for

          Gravel riding, back road exploring, bike packing and off-road adventures

          Highlights

          • Lightweight Topstone Carbon frameset with Kingpin suspension, SmartSense compatible / Integrated Cannondale App connectivity
          • Shimano GRX 400 10-speed shifting & hydraulic disc brakes
          • WTB ST i23 TCS rims

          Nothing is Impassable

          Kingpin Suspension
          Delivering a smooth ride without the added weight and complexity of a shock and links, Kingpin is our answer for the most demanding gravel riders. Whether you need more comfort to go long, more traction to push beyond or more give to take on the tech - Kingpin is the maintenance-free, lightweight answer to your prayers.

          Get to Know Kingpin Suspension

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          Features

          Load Up. Roll Out.
          With plentiful gear and waterbottle mounts on the frame and fork, Topstone Carbon is ready to load up and go long.
          Corner like a Boss
          Rail through the rough and come out smiling. Led by our OutFront steering geometry, the Topstone Carbon offers up handling that's serenely stable in the chop, and light & nimble everywhere else.

          Topstone Carbon Explained

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          Specs

          Details

          Frameset

          • Frame
            Topstone Carbon, Kingpin suspension system, SmartSense compatible, Proportional Response construction, 12x142mm thru-axle, 27.2 dropper post ready, BSA 68mm threaded BB, DirectLine internal cable routing, removable fender bridge, multiple gear/bottle mounts
          • Fork
            Topstone Carbon, 1-1/8" to 1.5" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru-axle, triple bottle/gear mounts, fender mounts
          • Headset
            Integrated, 1-1/8" - 1.5"

          Drivetrain

          • Rear Derailleur
            Shimano GRX 400, Shadow RD+
          • Front Derailleur
            Shimano GRX 400, braze-on
          • Shifters
            Shimano GRX 400, 10-speed
          • Chain
            KMC X10, 10-speed
          • Crank
            Shimano GRX 600, 46/30
          • Rear Cogs
            SunRace, 11-36, 10-speed
          • Bottom Bracket
            Shimano BSA 68

          Brakes

          • Brakes
            Shimano GRX 400 hydraulic disc, 160/160mm RT54 rotors
          • Brake Levers
            Shimano GRX 400 hydraulic disc

          Wheels

          • Rims
            WTB ST i23 TCS, 700c, 28h, tubeless ready
          • Spokes
            Stainless Steel, 14g
          • Tire Size
            45
          • Wheel Size
            700c
          • Hubs
            (F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock
          • Tires
            WTB Riddler Comp, 700x45c (Europe/UK - Vittoria Terreno Dry 700x40c)
          • Front Tire
            WTB Riddler Comp, 700x45c (Europe/UK - Vittoria Terreno Dry 700x40c)
          • Rear Tire
            WTB Riddler Comp, 700x45c (Europe/UK - Vittoria Terreno Dry 700x40c)

          Components

          • Handlebar
            Cannondale 3, butted 6061 Alloy, 16 deg flare drop
          • Stem
            Cannondale 3, 6061 Alloy, 31.8, 7°
          • Grips
            Cannondale Bar Tape, 3.5mm
          • Saddle
            Fizik Aliante Delta, S-alloy rails
          • Seatpost
            Cannondale 3, 6061 Alloy, 27.2x350mm

          Connectivity

          • Wheel Sensor
            Cannondale Wheel Sensor

          Extra

          • Extra 1
            StrapRack tool/stuff holder

          Safety Information

          • Ingestion Hazard

            WARNING - INGESTION HAZARD: This product contains a button cell or coin battery. DEATH or serious injury can occur if ingested. A swallowed button cell or coin battery can cause Internal Chemical Burns in as little as 2 hours. KEEP new and used batteries OUT OF REACH OF CHILDREN. Seek immediate medical attention if a battery is suspected to be swallowed or inserted inside any part of the body.

          Please note that, based on component availability and other factors, specifications are subject to change without notice.

          Geometry

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          Specifications

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