Topstone 1

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          Explore further. Ride freer.

          A capable, versatile gravel road bike. Built for chasing horizons, exploring routes less travelled or accelerating your commute.

          Where it thrives

          Gravel roads, out in the elements

          What it's built for

          Traction, handling, comfort

          Highlights

          • Light, durable SmartForm C2 Alloy Frame w/ full carbon fork
          • Shimano GRX 800/600 11-speed shifting
          • Shimano GRX 400 hydraulic disc brakes
          Feel the light
          Light and lively, smooth yet snappy. Topstone's SmartForm C2 Alloy construction showcases our decades of expertise in aluminum craftsmanship.
          Full Carbon Fork

          A full carbon fork with a tapered steerer and 12mm thru-axles delivers a light, comfortable and precise-steering front end.

          OutFront Steering Geometry

          Keeps the steering light and agile, while positioning the wheel further in front of the rider for stability and confidence on rougher stuff. Plus it reduces the chance of toe overlap on smaller sizes.

          Dropper Ready

          Built to accept an internally-routed 27.2 dropper seatpost, which shouldn’t really be a surprise on a bike that's this off-road capable.

          Removable Fender Bridge

          Bolts on when you want fenders, disappears when you don't.

          Specs

          Details

          Frameset

          • Frame
            SmartForm C2 Alloy, 12x142 thru-axle, tapered headtube, flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts
          • Fork
            BallisTec Full Carbon, 1-1/8" to 1-1/4" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru axle
          • Headset
            Integrated, 1-1/8" - 1-1/4"

          Drivetrain

          • Rear Derailleur
            Shimano GRX 810, Shadow RD+
          • Front Derailleur
            Shimano GRX 800, braze-on
          • Shifters
            Shimano GRX 600, 11-speed
          • Chain
            KMC X11, 11-speed
          • Crank
            FSA Omega AGX+ Alloy, 46/30
          • Rear Cogs
            Shimano 105, 11-34, 11-speed
          • Bottom Bracket
            FSA Cartridge

          Brakes

          • Brakes
            Shimano GRX 400 hydraulic disc, 160/160mm RT56 rotors
          • Brake Levers
            Shimano GRX 600 hydraulic disc

          Wheels

          • Front Hub
            Formula cartridge bearing, 12x100mm centerlock
          • Rear Hub
            Formula cartridge bearing, 12x142mm centerlock
          • Brake Type
            Disc
          • Rims
            WTB ST i23 TCS, 28h, tubeless ready
          • Spokes
            Stainless Steel, 14g
          • Tire Size
            37
          • Wheel Size
            700c
          • Tires
            WTB Nano, 700x40c, wire bead

          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

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

          Geometry

          Road Resist Wind

          See Helmets