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
- Cannondale Wheel Sensor delivers hyper-accurate speed, distance and route info, service reminders, and more via the Cannondale App
FIRST LOOK | Topstone Carbon
Always Game
Features
Tidy does it
Internal cable routing throughout the frame, combined with Conceal Stem, delivers a tidy, integrated look.
KingPin
Our innovative gravel rear suspension is light, simple, and effective. A thru-axle pivot in the seat tube allows the rear triangle and seatpost of the bike to flex vertically, delivering up to 30mm of bump-smoothing travel.
StashPort + StashBag
StashPort is our take on a downtube storage system, accessed beneath the water bottle cage. Every bike includes StashBag, a specially designed bag for your essentials.
Specs
Details
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Platform
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Model NameTopstone Carbon 3 GRX - 1x
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Model CodeC15195U
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
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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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Front HubShimano TC500, 12x100mm centerlock
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Rear HubShimano TC500, 12x142mm centerlock
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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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TiresWTB Riddler TCS Light, 700x45c, tubeless ready
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Front TireWTB Riddler TCS Light, 700x45c, tubeless ready
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Rear TireWTB Riddler TCS Light, 700x45c, tubeless ready
Components
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HandlebarCannondale 3, butted 6061 Alloy, 16 deg flare drop
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StemCannondale C1 Conceal, Alloy, 31.8, -6°
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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
Connectivity
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Wheel SensorCannondale Wheel Sensor
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
Product Information
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