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.
All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.
We've partnered with PedalSure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.
Cannondale Topstone Carbon Ultegra Disc RX Gravel Road Bike 2020
The Cannondale Topstone Carbon Ultegra Disc RX Gravel Road Bike is specced for pure exploration and all-road performance. With space for a 40mm wide tyre and an innovative KingPin Suspension that delivers up to 30mm of additional frame compliance to ease the resonance from bumps in the road, the ride will feel velvet smooth helping to reduce fatigue on your body. The geometry is dialled in for an Endurance Fit that puts you into a stable position for comfort and control in all conditions, whilst still feeling low enough to ride fast when needed. Responsiveness and acceleration don't fall by the wayside thanks to the LockR Pivot that keeps the back end sharp for when you need to put more power through the pedals.
Further tech advancements include an integrated wheel sensor that accurately tracks speed, route and distance stats, and even recommends service and maintenance milestones based on use, all through the free Cannondale app.
With a myriad of mounting points available on the downtube, seat tube and forks, you can set up all your bike-packing gear exactly as you require, and with an 11-34t cassette paired with a 46/30T chainset you will be spinning up all the hills no matter how much stuff you want to carry.
- Built with plenty of room for tyres up to 40mm wide, for comfort, grip and adventurous capability
- Internal routing protects vulnerable cables from filth
- Multi-position mount on the downtube, and more on the top tube, seat tube, and under the down tube, and there are even mounts on the forks
- Dropper Ready - built to accept an internally-routed 27.2 dropper seatpost
- Shimano Ultegra groupset with 11-34t cassette and 46/30T FSA chainrings
- Shimano Ultegra hydraulic disc brakes
- OutFront Steering further stabilises the ride
|FRAME||Cannondale BallisTec Carbon, Kingpin suspension system, Proportional Response size-specific construction, Directline internal cable routing, BB30-83 Ai, 142x12 Speed Release thru-axle, flat-mount disc, removable mudguard bridge, multiple gear/bottle mounts, dropper post compatible|
|FORK||Cannondale BallisTec Carbon, 55mm OutFront offset, SAVE, 1-1/8" to 1.5" steerer, integrated crown race, Directline internal routing, 12x100mm Speed Release thru-axle, flat mount disc, gear/rack/mudguard mounts|
|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 rotors|
|REAR BRAKE||Shimano Ultegra hydro disc, 160mm RT54 rotors|
|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||Cannondale 1, BB30a, FSA rings, 46/30|
|CHAIN||Shimano HG601, 11-speed|
|FRONT WHEEL||Cannondale HollowGram 22, 22mm deep, 25mm ID, tubeless ready, HollowGram Sealed Bearing, straight pull, 12x100|
|REAR WHEEL||Cannondale HollowGram 22, 22mm deep, 25mm ID, tubeless ready, HollowGram 142x12 rear with DT internals, centerlock|
|FRONT TYRE||WTB Riddler TCS Light, 700 x 37c, tubeless ready|
|REAR TYRE||WTB Riddler TCS Light, 700 x 37c, tubeless ready|
|SADDLE||Fabric Scoop Radius Sport, steel rails|
|SEATPOST||Cannondale C3, 6061 Alloy, 27.2 x 350mm (44-56), 400mm (58-63)|
|PEDALS||Available to be purchased separately|
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 specified), 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.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. We do not install accessories to bikes, including mudguards.