Cannondale Topstone Carbon 3 GRX 1x – Carbon Gravel Bike with Kingpin Suspension

The Cannondale Topstone Carbon 3 GRX 1x is a carbon gravel bike designed for cyclists who love exploring new routes, covering long distances and riding across asphalt, gravel roads and off-road trails.

Its Topstone Carbon frame with Kingpin suspension system is engineered to enhance comfort and control on uneven terrain, while the Shimano GRX 1x12 drivetrain combines simple operation with a wide range of gears.

Equipped with 45 mm WTB Riddler tires, Shimano GRX hydraulic disc brakes and numerous mounting points for accessories, this gravel bike is ready for sporty rides, off-road adventures and bikepacking trips.

Topstone Carbon Frame with Kingpin Suspension

At the heart of the Cannondale Topstone Carbon 3 GRX 1x is its Topstone carbon frame, developed using Proportional Response technology to optimize frame performance across different sizes.

The Kingpin suspension system allows controlled flex in the rear section of the frame, helping absorb vibrations and bumps without requiring a traditional rear shock absorber.

This design improves riding comfort during long gravel adventures while maintaining the simplicity of a gravel bike.

The frame also features internal cable routing, a 12x142 mm rear thru-axle, a 68 mm BSA threaded bottom bracket and a UDH derailleur hanger.

Stashport: Integrated Frame Storage

The Topstone Carbon 3 GRX 1x features Stashport, an integrated storage compartment located in the frame's downtube.

This practical solution makes it possible to store small accessories and essential items inside the frame, helping keep the bike organized.

It is particularly useful for long-distance rides and bikepacking adventures where efficient storage is important.

Shimano GRX 1x12 Drivetrain

The Cannondale Topstone Carbon 3 GRX 1x is equipped with a Shimano GRX 12-speed single-chainring drivetrain, designed to provide dependable shifting and straightforward operation on gravel terrain.

The Shimano GRX RX822 Shadow SGS rear derailleur is paired with Shimano GRX 610 shift/brake levers and a Shimano GRX 610 crankset with a 40T chainring.

The Shimano SLX M7100 10-51T cassette provides a wide gear range, making it suitable for steep climbs, gravel tracks and routes with frequent changes in gradient.

The 1x12 configuration eliminates the front derailleur, simplifying gear management and allowing riders to focus on the trail ahead.

Topstone Carbon Fork with 55 mm OutFront Offset

The Topstone Carbon fork features a carbon construction with a 55 mm OutFront offset, designed to contribute to stable and precise handling.

It includes a 12x100 mm thru-axle, internal brake hose routing, flat-mount disc brake compatibility and multiple accessory mounts.

The additional mounting points on the fork allow compatible bottle cages or equipment carriers to be installed, increasing versatility for longer cycling trips.

WTB Tubeless-Ready Wheels and 45 mm Tires

The Topstone Carbon 3 GRX 1x features WTB ST i25 TCS rims with 28 spoke holes and a tubeless-ready design.

The WTB Riddler TCS Light 700x45c tires are designed to balance rolling efficiency and traction across mixed surfaces, from compact gravel roads to more demanding off-road tracks.

The 45 mm tire width helps improve comfort and control over uneven terrain.

Shimano TC500 Centerlock hubs with 12 mm thru-axles complete the wheel setup.

Shimano GRX 610 Hydraulic Disc Brakes

The bike is equipped with Shimano GRX 610 hydraulic disc brakes, designed to provide controlled and reliable braking performance during gravel riding.

Shimano RT70 160 mm rotors are fitted at both the front and rear.

This configuration allows riders to manage speed precisely on descents, gravel trails and surfaces with changing grip conditions.

Cannondale 3 Gravel Handlebar with 16° Flare

The Cannondale 3 handlebar made from 6061 aluminum features a 16° flare, creating a wider lower-hand position for improved control on rough terrain.

Its 120 mm drop and size-specific widths provide a versatile riding position for both fast gravel sections and more technical trails.

The Cannondale C1 Conceal aluminum stem completes the cockpit, while 2.7 mm Cannondale KnurlCork handlebar tape provides additional grip and hand comfort.

Ready for Bikepacking and Long-Distance Adventures

The Cannondale Topstone Carbon 3 GRX 1x is designed to be a versatile gravel bike suitable for bikepacking.

The frame features multiple mounting points for bottle cages, accessories and travel equipment, while the fork provides additional mounts for compatible cargo accessories.

The bike also includes fender mounts and a removable rear fender bridge.

The frame is compatible with 27.2 mm dropper seatposts, allowing riders to install one separately according to their preferences.

Comfort with Selle Royal SRX Open Saddle

The Selle Royal SRX Open saddle is designed to support cyclists during sporty rides and longer journeys.

The Cannondale 3 6061 aluminum seatpost, measuring 27.2x350 mm, completes a setup focused on versatility and reliability.

Who Is the Cannondale Topstone Carbon 3 GRX 1x For?

The Cannondale Topstone Carbon 3 GRX 1x is ideal for cyclists looking for a carbon gravel bike with a single-chainring drivetrain, capable of handling mixed terrain and long-distance adventures.

It is particularly suitable for:

• Gravel riding: unpaved roads, gravel tracks and off-road trails.
• Gravel racing and endurance events: demanding routes and long-distance challenges.
• Bikepacking: multi-day cycling trips and adventures with equipment.
• Training: mixed routes combining asphalt and gravel.
• Exploration: discovering new routes and enjoying outdoor adventures.

Cannondale Topstone Carbon 3 GRX 1x Technical Specifications

• Brand: Cannondale
• Model: Topstone Carbon 3 GRX 1x
• Category: Carbon gravel bike
• Frame: Topstone Carbon, Proportional Response construction
• Suspension: Kingpin suspension system
• Integrated storage: Stashport in the downtube
• Cable routing: Internal
• Rear thru-axle: 12x142 mm
• Derailleur hanger standard: UDH
• Bottom bracket: Shimano BSA 68 mm threaded
• Dropper post compatibility: 27.2 mm
• Fork: Topstone Carbon, 55 mm OutFront offset
• Front thru-axle: 12x100 mm
• Rear derailleur: Shimano GRX RX822 Shadow SGS
• Shifters: Shimano GRX 610, 12-speed
• Crankset: Shimano GRX 610, 40T single chainring
• Crank arm length: 165 mm (47 cm), 170 mm (51 cm), 172.5 mm (54-56 cm), 175 mm (58-61 cm)
• Cassette: Shimano SLX M7100, 10-51T, 12-speed
• Chain: Shimano M7100, 12-speed
• Brakes: Shimano GRX 610 hydraulic disc
• Brake rotors: Shimano RT70, 160/160 mm
• Rims: WTB ST i25 TCS, 28-hole, tubeless ready
• Front hub: Shimano TC500, Centerlock, 12x100 mm
• Rear hub: Shimano TC500, Centerlock, 12x142 mm
• Spokes: 14g stainless steel
• Tires: WTB Riddler TCS Light, 700x45c, tubeless ready
• Handlebar: Cannondale 3, 6061 aluminum, 16° flare, 120 mm drop
• Handlebar width: 400 mm (47 cm), 420 mm (51-54 cm), 440 mm (56-61 cm)
• Stem: Cannondale C1 Conceal, aluminum, -6° angle
• Stem length: 70 mm (47-51 cm), 80 mm (54 cm), 90 mm (56-58 cm), 100 mm (61 cm)
• Headset: Acros IS52/40 ICR
• Handlebar tape: Cannondale KnurlCork, 2.7 mm
• Saddle: Selle Royal SRX Open
• Seatpost: Cannondale 3, 6061 aluminum, 27.2x350 mm
• Pedals: Not included
• Mounting points: Accessory, bottle cage and fender mounts
• Recommended use: Gravel riding, bikepacking, off-road trails, long-distance cycling and mixed terrain

Technical specifications may be changed by the manufacturer. Certain component dimensions vary according to frame size. Pedals are not included.