Nothing is impracticable with Topstone Carbon 4
The ultimate gravel bike for everything from dirt roads to singletrack. With the grip and comfort of Kingpin suspension, nothing is off-limits. With multiple bottle cage mounts and frame and fork mounts, the Topstone Carbon is ready to be loaded up and traveled for miles. Enter the most treacherous turns with confidence and exit them with a smile: thanks to the OutFront geometry, the Topstone Carbon is stable on rough terrain while remaining agile and easy to handle in other situations.
Kingpin Suspension
Increased comfort without the added weight and complexity of pivots and shock absorbers, Kingpin is the answer for the most demanding gravel riders. Whether you need more comfort for long rides, more traction for cornering at 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 thru-axle ensure smooth operation, maintenance-free reliability and a saving of over 100g compared to traditional bearings.
Tire size and compatibility
The new design with lowered seatstays allows you to use tires up to 700x45mm or 27.5x2.1", leaving 6mm of tire clearance on both sides and with standard camber for easy wheel changes.
Specific for each user
Size-specific Proportional Response construction delivers optimal stiffness to each frame size, giving everyone the superb ride feel the Synapse is known for.
