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, bike packing, 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
- Cannondale Wheel Sensor delivers hyper-accurate speed, distance and route info, service reminders, and more via the Cannondale App
Kingpin is the lightweight, go-for-longer rear suspension. Maintenance-free and complexity-free, it gives the Topstone frame legit rear-wheel travel without compromising stiffness for the sprint. Kingpin provides a smoother ride, more traction to push harder, and more give to take on the rough stuff. You’ll hardly know it’s there, but you’ll be very glad you’ve got it.
The all-new StashPort storage system in the downtube is designed to be concealed yet convenient. Paired with the special StashBag, you can bring your essentials along for the ride and know that they’ll be kept safe, whatever you get up to out there. Meanwhile, multiple mounting points on the frame, mean more gear and more adventures.
A dialed-in ride, just for you. AKA: Proportional Response Construction. Everything from the carbon layup to the geometry on Topstone is individually tuned by frame size. So that the bike – including KingPin suspension – works in harmony to give you the best ride for you and your dimensions.
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Frame
Topstone 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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Fork
Topstone 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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Headset
Acros IS52/40 ICR
Drivetrain
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Rear Derailleur
Shimano GRX 822, Shadow SGS
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Shifters
Shimano GRX 610, 12-speed
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Chain
Shimano M7100, 12-speed
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Crank
Shimano GRX 610, 40T
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Rear Cogs
Shimano SLX M7100, 10-51, 12-speed
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Bottom Bracket
Shimano BSA 68
Brakes
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Brakes
Shimano GRX 610 hydraulic disc, 160/160mm RT70 rotors
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Brake Levers
Shimano GRX 610 hydraulic disc
Wheels
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Front Hub
Shimano TC500, 12x100mm centerlock
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Rear Hub
Shimano TC500, 12x142mm centerlock
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Rims
WTB ST i25 TCS, 28h, tubeless ready
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Spokes
Stainless Steel, 14g
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Tires
WTB Riddler TCS Light, 700x45c, tubeless ready
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Front Tire
WTB Riddler TCS Light, 700x45c, tubeless ready
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Rear Tire
WTB Riddler TCS Light, 700x45c, tubeless ready
Components
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Handlebar
Cannondale 3, butted 6061 Alloy, 16 deg flare drop
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Stem
Cannondale C1 Conceal, Alloy, 31.8, -6°
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Grips
Cannondale KnurlCork, 2.7mm
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Saddle
Selle Royal SRX Open
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Seatpost
Cannondale 3, 6061 Alloy, 27.2x350mm
Connectivity
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Wheel Sensor
Cannondale Wheel Sensor
Extra
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Extra 1
Large StashBag downtube storage bag, tubeless valve stems