The Cannondale Topstone Carbon 4 is a gravel bike built on a lightweight BallisTec carbon frame with the Kingpin rear suspension system for added compliance. It’s equipped with a Shimano GRX 400 10-speed groupset and hydraulic disc brakes, offering confidence and comfort on mixed terrain from smooth pavement to rough backroads.

• BallisTec carbon frame with Kingpin rear suspension providing approximately 30 mm of bump smoothing

• BallisTec carbon fork with 55 mm OutFront offset, flat-mount disc mounts, and thru-axles (12×100 mm front, 12×142 mm rear)

• Shimano GRX 400 10-speed drivetrain (46/30 T crankset, 11–36 T cassette, Shadow RD+)

• Shimano GRX hydraulic disc brakes with 160 mm RT54 rotors front and rear

• WTB ST i23 TCS tubeless-ready rims laced to Formula hubs, shod with 700×45 c WTB Riddler Comp tires

• geometry tuned for stability and control (71.2° head-tube angle, OutFront steering design)

• internal cable routing and Proportional Response size-specific compliance zones

• mounts for double/triple bottle cages, fenders, racks, and StashPort under-downtube storage

• SmartSense compatibility for integrated lights and radar, plus dropper-post readiness