Go anywhere, bring everything
Pairing Cannondale's light KingPin rear suspension with a gravel-specific carbon fork, this latest generation of the Topstone gives a smoother ride with more confidence and control than ever.
Where it thrives
Gravel racing, exploring rough tracks and adventuring over new terrain.
What it's 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 Shimano's top electronic GRX Di2 RX825 gravel groupset, for smooth shifting
- Aero wheelset with Reserve 40|44 GR rims, DT Swiss hubs, Vittoria Terreno T30 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
- Comfortable Cannondale SAVE carbon seatpost and Easton EC90 AX carbon bar
Technical Specifications
| Model Code | C15315U |
| 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 | Front Derailleur: Shimano GRX 825, Di2 Rear Derailleur: Shimano GRX 825, Di2, Shadow RD+ Shifters: Shimano GRX 825, Di2, 12-speed Chain: Shimano M8100, 12-speed Crank: Shimano GRX 820, 48/31 Rear Cogs: Shimano Ultegra R8100, 11-34, 12-speed |
| BRAKES | Brakes: Shimano GRX RX820, 160/160mm MT800 centerlock rotors Brake Levers: Shimano GRX 825 hydraulic disc |
| WHEELS | Hubs: (F) DT Swiss 240, 12x100mm centerlock (R) DT Swiss 240, 12x142mm centerlock Rims: Reserve 40 I 44 GR Carbon, Turbulent Aero Tech, 24h, tubeless ready Spokes: Sapim CX-Ray Aero straight pull Tires: Vittoria Terreno Dry, 700x45c, tubeless ready |
| COMPONENTS | Handlebar: Easton EC90 AX Carbon Grips: Cannondale KnurlCork, 2.7mm Stem: Cannondale C1 Conceal, Alloy, 31.8, -6° Saddle: Fizik Terra Argo X3 Seatpost: SAVE Carbon, 27.2x350mm (47-58), 400mm (61) |
| Extras | Large StashBag downtube storage bag, Reserve Fillmore tubeless valve stems, Shimano Di2 charger |
