This is Cannondale 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
Cannondale Topstone Carbon 3 GRX 1X Gravel Bike is super comfortable thanks to Kingpin 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. 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.
Cannondale Topstone Carbon 3 GRX 1X Gravel Bike Built For
Making every ride feel smoother over mixed surfaces and carrying supplies for long days.
- KingPin suspension, with a thru-axle pivot in the seat tube, allows 30mm of vertical flex
- Topstone Carbon fork, with 3 x “braze-on” mounts on each leg and long offset ensuring responsive steering
- Each frame is tuned for uniform performance and feel, regardless of frame size
- With single chainring and SLX 12-spd cassette, blends Shimano's mechanical GRX820 and GRX610 gravel groupset components, for value and shifting performance
- Durable, trusty wheelset with WTB ST i25 rims, Shimano hubs, WTB Riddler 45c tyres
- Built to accept an internally routed 27.2mm dropper seatpost, for improved control on descents
- StashPort downtube storage system includes StashBag to keep your essentials safe
- Cannondale 3 6061 Alloy seatpost and flared bar, for gravel-friendly hand positions
Cannondale Topstone Carbon 3 GRX 1X Gravel Bike Specification
| Category | Details |
|---|---|
| Model Code | C15355U |
| 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 Rear Cogs: Shimano SLX M7100, 10-51, 12-speed |
| BRAKES | Brakes: Shimano GRX 610 hydraulic disc, 160/160mm RT70 rotors Brake Levers: Shimano GRX 610 hydraulic disc |
| WHEELS | Hubs: (F) Shimano TC500, 12x100mm centerlock / (R) Shimano TC500, 12x142mm centerlock Rims: WTB ST i25 TCS, 28h, tubeless ready Spokes: Stainless Steel, 14g Tires: WTB Riddler TCS Light, 700x45c, tubeless ready |
| COMPONENTS | Handlebar: Cannondale 3, butted 6061 Alloy, 16° flare drop Grips: Cannondale KnurlCork, 2.7mm Stem: Cannondale C1 Conceal, Alloy, 31.8, -6° Saddle: Selle Royal SRX Open Seatpost: Cannondale 3, 6061 Alloy, 27.2x350mm |
| Extras | Large StashBag downtube storage bag, tubeless valve stems |