Cannondale Topstone 3 vs Cannondale Topstone 2 GRX 2x

Both are the same SmartForm C2 alloy Topstone frame with a full carbon fork, 45mm tire clearance and the same mounts, so the frame is a tie. The Topstone 2 GRX is the better bike: Shimano GRX400 2x10 with hydraulic disc brakes shifts and stops better than the Topstone 3's mechanical discs and 1x11 CUES drivetrain, and it adds internal dropper post routing. The Topstone 3 is the simpler, lower-cost entry point with a wider 1x range and fewer parts to maintain. Owners rate the Topstone platform well for comfort and versatility; the common complaint on the 3 is mechanical brake feel and the 9-speed gearing on the base spec.

• Choose the Topstone 3 if you want the simplest, most maintenance-light gravel and commuter bike and you mostly ride flat-to-rolling terrain.
• Choose the Topstone 2 GRX if you want hydraulic brakes, a 2x10 gear range for climbs and loaded riding, and dropper post routing for future upgrades.