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 600/400 10-speed gravel group
• WTB ST i23 TCS rims

Specs

Details

• PlatformTopstone Carbon
• Model NameTopstone Carbon 4
• Model CodeC15402U

Frameset

• FrameTopstone 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
• ForkTopstone Carbon, 1-1/8″ to 1.5″ steerer, 55mm OutFront offset, flat mount disc, internal routing, 12×100 thru-axle, triple bottle/gear mounts, fender mounts
• HeadsetIntegrated, 1-1/8″ – 1-1/2″

Drivetrain

• Rear DerailleurShimano GRX 400, Shadow RD+
• Front DerailleurShimano GRX 400, braze-on
• ShiftersShimano GRX 400, 10-speed
• ChainKMC X10, 10-speed
• CrankShimano GRX 600, 46/30 (Europe/UK – FSA Gossamer Pro Modular AGX+, 46/30)
• Rear CogsShimano HG500, 11-34, 10-speed
• Bottom BracketShimano BSA 68

Brakes

• BrakesShimano GRX 400 hydraulic disc, 160/160mm RT54 rotors
• Brake LeversShimano GRX 400 hydraulic disc

Wheels

• RimsWTB ST i23 TCS, 700c, 28h, tubeless ready
• SpokesStainless Steel, 14g
• TiresWTB Riddler Comp, 700 x 45c (Europe/UK – Vittoria Terreno Dry 700 x 40c)
• Tire Size45
• Wheel Size700c
• Hubs(F) Formula cartridge bearing, 12x100mm, centerlock / (R) Formula cartridge bearing, 12x142mm, centerlock
• Front TireWTB Riddler Comp, 700 x 45c (Europe/UK – Vittoria Terreno Dry 700 x 40c)
• Rear TireWTB Riddler Comp, 700 x 45c (Europe/UK – Vittoria Terreno Dry 700 x 40c)

Components

• HandlebarCannondale 3, butted 6061 Alloy, 16 deg flare drop
• StemCannondale 3, 6061 Alloy, 31.8, 7
• GripsFizik Solocush Soft, 3mm
• SaddleFizik Aliante Delta, S-alloy rails
• SeatpostCannondale 3, 6061 Alloy, 27.2 x 350mm

Connectivity

• Wheel SensorCannondale Wheel Sensor