The Topstone Carbon 3 GRX 2x is built for mixed-surface riding, from fast gravel to broken back roads. A tuned carbon frame, confident geometry and reliable GRX drivetrain make it a bike you can load up and ride all day.

Key Features:

• Frame: Carbon frame with KingPin suspension, tuned geometry, 42c clearance and StashPort storage
• Fork: Full carbon fork with long offset, internal routing and triple mounts on each leg
• Drivetrain: Shimano GRX 2x mix, GRX610/820, 12-speed with 46/30 chainset
• Brakes: Shimano GRX 610 hydraulic disc brakes with 160mm RT70 rotors
• Wheels: WTB ST i25 tubeless-ready rims with Shimano TC500 hubs
• Tyres: WTB Resolute 700x42c tyres with fast-rolling gravel tread
• Standout: KingPin rear suspension offers up to 30mm vertical compliance
• Finance: Available with 0% APR finance

Designed to thrive on gravel racing, rough tracks and long-distance adventures, the Topstone Carbon 3 focuses on comfort and control without dulling the ride. The carbon frame uses Proportional Response construction, so every size delivers the same balanced feel, with stiffness and compliance tuned to the rider.

KingPin suspension is built into the rear of the frame, using a thru-axle pivot in the seat tube to allow up to 30mm of vertical flex. On the trail, that takes the sting out of chatter and loose surfaces, helping you stay fresher and maintain traction over long rides.

Up front, the full carbon fork uses a long 55mm offset for stable yet responsive steering on gravel. Triple mounts on each leg and extra frame mounts make it easy to carry bottles, bags or gear for bigger days out.

The Shimano GRX 2x drivetrain mixes GRX610 and GRX820 components, giving reliable mechanical shifting with a wide gear range that works just as well on steep climbs as it does spinning along flat gravel. GRX hydraulic disc brakes deliver consistent braking in all conditions.

WTB ST i25 wheels are tubeless ready and paired with 42c WTB Resolute tyres, offering grip and confidence on loose terrain while still rolling efficiently on firmer surfaces. Practical touches like dropper post compatibility, internal cable routing and downtube storage make this a gravel bike built for real-world riding, not just the start line.

Occasionally, without notice, manufacturers change product design and/or specifications.