Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premier Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.
Cannondale Topstone Ultegra Disc Gravel Road Bike 2020
With huge volume tyres, a comfortable yet agile geometry and plenty of mounts for bottled and storage to set yourself up for exploring new roads off the beaten track, the Cannondale Topstone Ultegra Disc Gravel Road Bike is engineered for long days and rough tracks. The geometry has the feel of an endurance road bike - less aggressive but still agile and sporty when required - and the full carbon fork with thru-axle further enhances the nimble handling. The wheels are tubeless-ready, to protect from punctures and reduce rolling resistance, and the hydraulic disc brakes will inspire confidence whatever the surface you're rolling over.
Ensuring that your gears shift crisply is a full Shimano Ultegra groupset with 11-34t cassette and 46/30T chainset, so that no matter how lumpy the terrain you'll have plenty of gears for tackling whatever stands in your way.
Features
- Built with plenty of room for tyres up to 42mm wide, for comfort, grip and adventurous capability
- A slack head angle paired with a long 55mm fork rake delivers great stability at speed
- Multiple bottle cage positions on the downtube mount let you configure for big frame bags
- Full carbon fork with tapered steerer and thru-axle
- Shimano Ultegra groupset
- Shimano Ultegra hydraulic disc brakes
Technical Specification
| FRAME | Cannondale SmartForm C2 Alloy, 142x12 thru-axle, tapered headtube, flat mount disc, StraightShot internal cable routing, multiple gear/bottle mounts |
| FORK | Cannondale Full Carbon, 1-1/8” to 1-1/4” steerer, 55mm OutFront offset, flat mount disc, internal routing, 12x100 thru axle |
| STEM | Cannondale 3, 6061 alloy, 7° |
| HANDLEBAR | Cannondale 3, butted 6061 alloy, 16 deg flare drop |
| GRIPS | Cannondale Grip Bar Tape w/Gel, 3.5mm |
| FRONT BRAKE | Shimano Ultegra hydro disc, 160mm RT54 rotor |
| REAR BRAKE | Shimano Ultegra hydro disc, 160mm RT54 rotor |
| BRAKE LEVERS | Shimano Ultegra hydro disc |
| FRONT DERAILLEUR | Shimano Ultegra, braze-on |
| REAR DERAILLEUR | Shimano Ultegra RX |
| SHIFT LEVERS | Shimano Ultegra hydro disc, 2x11 |
| CASSETTE | Shimano Ultegra, 11-34, 11-speed |
| CRANKSET | FSA Omega ME Alloy, 46/30 |
| CHAIN | KMC X11, 11-speed |
| FRONT WHEEL | WTB KOM Light i23 TCS, 28h, tubeless ready, Formula CL-712, 12x100 centerlock |
| REAR WHEEL | WTB KOM Light i23 TCS, 28h, tubeless ready, Formula RXC-142S |
| FRONT TYRE | WTB Nano TCS Light, 700 x 40c, tubeless ready |
| REAR TYRE | WTB Nano TCS Light, 700 x 40c, tubeless ready |
| SADDLE | Fabric Scoop Radius Sport, steel rails |
| SEATPOST | Cannondale C3, 6061 Alloy, 27.2 |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
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