Gravel bike – Cannondale Topstone Carbon 3 GRX - 1x – 56cm

The Topstone model has gone from ground-breaking pioneer to a classic as quickly as the gravel trend swept across the world.

Always ready
Our vision of the ultimate all-round gravel bike. Go anywhere, bring everything, and keep exploring.

Model Description
One chainring, endless possibilities. The Topstone 3 GRX-1X delivers simplicity without compromising performance. A blend of Shimano GRX610/820 groupsets provides precise and reliable shifting, while KingPin suspension takes the edge off uneven surfaces. WTB tires keep you connected to the trail, making every ride a good one—whether it's a quick loop or an all-day epic.

What it is intended for
Gravel cycling and racing, bikepacking, tough and long rides on gravel or asphalt

Highlights
• Lightweight, full carbon fiber frame with KingPin rear suspension, Proportional Response frame with size-specific construction and StashPort storage in the downtube
• With a single chainring and wide-range SLX 12-speed cassette, this blend of Shimano's top-tier GRX820 and GRX610 gravel groupsets offers unbeatable value and performance
• Durable, reliable WTB ST i25 rims with Shimano hubs and WTB Riddler 45c gravel tires
• Cannondale 3 flared handlebars provide comfortable, gravel-friendly hand positions
• Cannondale Wheel Sensor provides hyper-accurate speed, distance, and route data, plus service reminders and more via the Cannondale app

– Size 56 suits riders between 177 - 185 cm tall.

• • Platform

    Topstone Carbon
  • Model Name

    Topstone Carbon 3 GRX - 1x
  • Model Code

    C15195U

  Frameset

  • Frame

    Topstone Carbon, Kingpin suspension system, Proportional Response construction, downtube Stashport, internal cable routing, 12x142mm thru-axle, 27.2 dropper post ready, UDH, BSA 68mm threaded BB, flat mount disc, 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

    Acros IS52/40 ICR

  Drivetrain

  • Rear Derailleur

    Shimano GRX 822, Shadow SGS
  • Shifters

    Shimano GRX 610, 12-speed
  • Chain

    Shimano M7100, 12-speed
  • Crank

    Shimano GRX 610, 40T
  • Rear Cogs

    Shimano SLX M7100, 10-51, 12-speed
  • Bottom Bracket

    Shimano BSA 68

  Brakes

  • Brakes

    Shimano GRX 610 hydraulic disc, 160/160mm RT70 rotors
  • Brake Levers

    Shimano GRX 610 hydraulic disc

  Wheels

  • Front Hub

    Shimano TC500, 12x100mm centerlock
  • Rear Hub

    Shimano TC500, 12x142mm centerlock
  • Rims

    WTB ST i25 TCS, 28h, tubeless ready
  • Spokes

    Stainless Steel, 14g
  • Tire Size

    45
  • Wheel Size

    700c
  • Tires

    WTB Riddler TCS Light, 700x45c, tubeless ready
  • Front Tire

    WTB Riddler TCS Light, 700x45c, tubeless ready
  • Rear Tire

    WTB Riddler TCS Light, 700x45c, tubeless ready

  Components

  • Handlebar

    Cannondale 3, butted 6061 Alloy, 16 deg flare drop
  • Stem

    Cannondale C1 Conceal, Alloy, 31.8, -6°
  • Grips

    Cannondale KnurlCork, 2.7mm
  • Saddle

    Selle Royal SRX Open
  • Seatpost

    Cannondale 3, 6061 Alloy, 27.2x350mm

  Connectivity

  • Wheel Sensor

    Cannondale Wheel Sensor

  Extra

  • Extra 1

    Large StashBag downtube storage bag, tubeless valve stems