Cannondale Topstone Carbon 3

Nothing is impassable with Topstone Carbon 3

The best gravel bike for everything from dirt roads to singletrack trails. With the grip and comfort of the Kingpin suspension, nothing is off-limits. With plenty of bottle cages and mounts on frame and fork, Topstone Carbon is ready to charge and ride for a long time. Enter the trickiest corners with confidence and come out smiling: thanks to OutFront geometry, Topstone Carbon is stable on rough terrain while remaining agile and easy to ride in other situations.

Kingpin suspension
Increased comfort without the added weight and complexity of joints and shock absorber: Kingpin is the answer for the most demanding gravel users. Whether you need more comfort for long rides, more traction for cornering on the limit, or more absorption for the most technical trails, - Kingpin is the lightweight, maintenance-free answer to your prayers.

Engineered simplicity
Low-friction bushings on the Kingpin suspension pivot ensure smooth operation, maintenance-free reliability, and a saving of over 100g compared to traditional bearings.

Tyre size and compatibility
New low-profile design allows you to use tyres up to 700x45mm or 27.5x2.1", leaving 6mm of wheel clearance on both sides and standard camber for easy wheel changes.

Specific to each user
Size-specific Proportional Response construction provides optimal stiffness for each frame size, so everyone gets the superb riding feel Synapse is known for.

SmartSense Ready
Make every ride better with increased visibility and safety. The SmartSense-ready frame makes it easy to integrate the bike with our light and radar rearview system.

OutFront Geometry
Secure stability and agile handling. An elongated fork offset combined with an open head angle keep the steering lively and easy to steer, while still offering high safety at high speeds and in rough terrain. 

Always connected
Via Cannondale's free app, the integrated wheel sensor acquires highly accurate information on speed, route and distance travelled. It also allows you to register your bike, reminds you to perform maintenance and offers many other services.

Prepared for telescopic seatpost
This bike is compatible with a 27.2 mm telescopic seatpost with internal cable routing, a must for a two-wheeler designed for off-road use.


  • Lightweight Topstone Carbon frame with Kingpin suspension, SmartSense compatible / Cannondale App integrated connectivity
  • Gravel-specific Shimano GRX 800/600 11v drivetrain
  • WTB ST i23 TCS rims with 700x45c WTB Riddler TCS Light tyres
  • Suitable for gravel and dirt roads, rough asphalt, trails
  • Designed for gravel trails, exploring back roads, multi-day adventures and off-road riding

Technical specifications

Frame kit
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" - 1-1/2"

Shifting: Shimano GRX 810, Shadow RD+
Front derailleur: Shimano GRX 810, braze-on
Shifting levers: Shimano GRX 600, 11-speed
Chain: Shimano HG601, 11-speed
Crankset: Shimano GRX 600, 46/30 (Europe/UK - FSA Gossamer Pro Modular AGX+, 46/30)
Sprocket set: Shimano HG700, 11-34, 11-speed
Bottom bracket: Shimano BSA 68

Brakes: Shimano GRX 600 hydraulic disc, 160/160mm RT64 rotors
Brakes Levers: Shimano GRX 600 hydraulic disc

Rims: WTB ST i23 TCS, 700c, 28h, tubeless ready
Spokes: Stainless Steel, 14g
Tyres: WTB Riddler TCS Light, 700 x 45c, tubeless ready (Europe/UK - Vittoria Terreno Dry 700 x 38c ANT tubeless compatible)
Tyre Size: 45
Wheel Size: 700c
Hubs: (F) Formula cartridge bearing, 12x100mm, centrelock / (R) Formula cartridge bearing, 12x142mm, centrelock
Front tyre: WTB Riddler TCS Light, 700 x 45c, tubeless ready (Europe/UK - Vittoria Terreno Dry 700 x 38c ANT tubeless compatible)
Rear tyre: WTB Riddler TCS Light, 700 x 45c, tubeless ready (Europe/UK - Vittoria Terreno Dry 700 x 38c ANT tubeless compatible)

Handlebar: Cannondale 3, butted 6061 Alloy, 16 deg flare drop
Handlebar stem: Cannondale 3, 6061 Alloy, 31.8, 7°.
Handlebar: Fizik Solocush Soft, 3mm
Saddle: Fizik Aliante Delta, S-alloy rails
Seatpost: Cannondale 3, 6061 Alloy, 27.2 x 350mm

Wheel sensor: Cannondale Wheel Sensor

StrapRack toolholder

Subject to component availability, specifications are subject to change without notice.