Cannondale Topstone Carbon 3 GRX - 1X
🔥 Limited Time SALE – ends in
Description
Always Game
Our take on the ultimate all-round gravel bike. Go anywhere, bring everything and then keep on going.
Model Description
One chainring, endless possibilities. The Topstone 3 GRX - 1X delivers simplicity without sacrificing performance. A Shimano GRX610/820 blended group keeps shifting precise and reliable, while KingPin suspension takes the sting out of rough terrain. WTB tires keep you connected to the trail, making every ride a good one—whether it’s a quick lap or a full-day escapade.
What it's for
Gravel riding & racing, bikepacking, going hard and long on dirt or pavement
Highlights
- Lightweight full carbon frameset with Kingpin rear suspension, Proportional Response size-specific construction and StashPort downtube storage
- With a single chainring and wide-range SLX 12-speed cassette, this blend of Shimano’s top-end GRX820 and GRX610 gravel groups offers a killer performance value
- Durable, dependable WTB ST i25 rims, with Shimano hubs and WTB Riddler 45c gravel tires
- Cannondale 3 flared handlebars offer comfortable, gravel-friendly hand positions
Specification
Frameset
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FrameTopstone Carbon, Kingpin suspension system, Proportional Response construction, downtube Stashport, internal cable routing, 12x142mm thru-axle, 27.2 dropper post ready, UDH, BSA 68mm threaded BB, flat mount disc, removable fender bridge, multiple gear/bottle mounts
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ForkTopstone Carbon, 1-1/8" to 1.5" steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru-axle, triple bottle/gear mounts, fender mounts
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HeadsetAcros IS52/40 ICR
Drivetrain
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Rear DerailleurShimano GRX 822, Shadow SGS
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ShiftersShimano GRX 610, 12-speed
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ChainShimano M7100, 12-speed
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CrankShimano GRX 610, 40T: 165mm (47cm), 170mm (51cm), 172.5 (54-56cm), 175mm (58-61cm)
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Rear CogsShimano SLX M7100, 10-51, 12-speed
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Bottom BracketShimano BSA 68
Brakes
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BrakesShimano GRX 610 hydraulic disc, 160/160mm RT70 rotors
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Brake LeversShimano GRX 610 hydraulic disc
Wheels
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RimsWTB ST i25 TCS, 28h, tubeless ready
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SpokesStainless Steel, 14g
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Tire Size45
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Wheel Size700c
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Hubs(F) Shimano TC500, 12x100mm centerlock / (R) Shimano TC500, 12x142mm centerlock
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TiresWTB Riddler TCS Light, 700x45c, tubeless ready
Components
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HandlebarCannondale 3, butted 6061 Alloy, 16 deg flare, 120mm drop: 400mm (47cm), 420mm (51-54), 440mm (56-61cm)
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StemCannondale C1 Conceal, Alloy, 31.8, -6°: 70mm (47-51m), 80mm (54cm), 90mm (56-58cm), 100mm (61cm)
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GripsCannondale KnurlCork, 2.7mm
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SaddleSelle Royal SRX Open
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SeatpostCannondale 3, 6061 Alloy, 27.2x350mm
Extra
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Extra 1Large StashBag downtube storage bag, tubeless valve stems
Please note that, based on component availability and other factors, specifications are subject to change without notice.
Geometry

Always Game
Payment methods
Choose from the payment methods below, including pay-later options where available. Your available methods and any payment terms will be shown at checkout.
The details that make a difference
- US
- Originated in
- 1971
- Since
Designed with purpose
- Lefty Suspension® For over 20 years, Lefty has been smoother, stiffer, and more precise than anything else out there. When it comes to suspension performance, Lefty stands alone.
- SmartSense™ SmartSense is Cannondale’s unique, discrete, and fully-integrated ecosystem of on-bike lights, rear-facing radar, sensors, and connected smartphone app. Designed to enhance visibility and awareness for you and other road-users alike, it’s the clever companion that inspires you to ride more, and with more confidence.
- HeadShok™ Urban front suspension that’s head and shoulders above the rest. HeadShok delivers more comfort and control, with less weight, less wear, and less maintenance than conventional forks.
- Delta Steerer Delta is an innovative steerer tube design that’s exclusive to Cannondale. The unique v-shape enables cables to be routed internally while minimizing the headtube’s frontal area, resulting in sleeker looks and less aero drag than other internally-routed road and gravel bikes.
- KingPin™ With lightweight, bump-taming suspension built right into the frame, KingPin turns rough terrain into smooth sailing. It’s the extra boost you need to crush rugged paths, ride faster, and go further – no second thoughts needed!








