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Cannondale

2026 Cannondale Topstone Carbon 3 GRX - 1x

2026 Cannondale Topstone Carbon 3 GRX - 1x

$4,999.99
$4,999.99
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Always Game
Our take on the ultimate all-round gravel bike. Go anywhere, bring everything and then keep on going.

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 tyres

  • Cannondale 3 flared handlebars offer comfortable, gravel-friendly hand positions



Features

  • Smiles for Miles: Kingpin is Cannondale's 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.

  • Bring It All: Cannondale's 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.

  • Tuned Ride: 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.

  • KingPin: Cannondale's 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 Cannondale's take on a downtube storage system, accessed beneath the water bottle cage. Every bike includes StashBag, a specially designed bag for your essentials.

  • Tyre Clearance: Lots of room for modern gravel rubber. The frame clears tyres up to 52mm wide with a single ring setup, or 50mm for a 2x, while the fork fits up to a whopping 56mm wide tyre. Measured size, of course.

  • Dropper Ready: Built to accept an internally-routed 27.2mm dropper seatpost, which shouldn´t be a surprise on a bike this capable.

  • Proportional Response: Tuned for the rider, our size-specific construction creates optimal stiffness and compliance for each frame size. So, every rider benefits from the ideal ride feel and comfort of KingPin.

  • OutFront Steering Geometry: Confident stability meets nimble agility. An extra long fork offset paired with a slack head angle keeps the steering light and lively, yet delivers unreal confidence at speed and in the rough stuff.

  • Tidy Does It: Internal cable routing throughout the frame, combined with Conceal Stem, delivers a tidy, integrated look.

Frameset

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
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
Headset Acros IS52/40 ICR

Drivetrain

Rear Derailleur Shimano GRX 822, Shadow SGS
Shifters Shimano GRX 610, 12-speed
Chain Shimano M7100, 12-speed
Crank Shimano GRX 610, 40T - 165mm (47cm), 170mm (51cm), 172.5 (54-56cm), 175mm (58-61cm)
Rear Cogs Shimano SLX M7100, 10-51, 12-speed
Bottom Bracket Shimano BSA 68

Brakes

Brakes Shimano GRX 610 hydraulic disc, 160/160mm RT70 rotors
Brake Levers Shimano GRX 610 hydraulic disc

Wheels

Rims WTB ST i25 TCS, 28h, tubeless ready
Spokes Stainless Steel, 14g
Tyre Size 45
Wheel Size 700c
Hubs (F) Shimano TC500, 12x100mm centerlock / (R) Shimano TC500, 12x142mm centerlock
Tyres WTB Riddler TCS Light, 700x45c, tubeless ready

Components

Handlebar Cannondale 3, butted 6061 Alloy, 16 deg flare, 120mm drop - 400mm (47cm), 420mm (51-54), 440mm (56-61cm)
Stem Cannondale C1 Conceal, Alloy, 31.8, -6° 70mm (47-51m), 80mm (54cm), 90mm (56-58cm), 100mm (61cm)
Grips Cannondale KnurlCork, 2.7mm
Saddle Selle Royal SRX Open
Seatpost Cannondale 3, 6061 Alloy, 27.2x350mm

Other

Accessories Large StashBag downtube storage bag, tubeless valve stems

Specifications subject to change without notice.

Size Guide
Geometry Image 1