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 Carbon Ultegra Disc Womens Gravel Road Bike 2020
Cannondale is redefining the capabilities of gravel riding and pushing you towards new horizons with the women's Topstone Carbon Ultegra Disc Gravel Road Bike. The frame features the advanced bump-smoothing KingPin suspension that allows the back of the bike to give you up to 30mm of road-smoothing compliance, slowing your rate of fatigue and elevating your fun. The geometry is optimised for endurance riding - slightly more upright for comfort and stability, yet low enough that when you want to push the pace your body position feels fast. The LockR Pivot further stabilises the back of the bike by securing the seatstays for greater rigidity and acceleration.
The Ultegra mechanical groupset is geared towards performance; lightweight yet robust to withstand the roughest conditions. An 11-34t cassette pairs with a 46/30T chainset that offers plenty of range for long climbs and the powerful hydraulic disc brakes will inspire confidence on loose surfaces so that you can perfectly feather your speed and maintain absolute control.
Delivering a nice touch of smart tech is the integrated wheel sensor that lets you accurately monitor speed, route, and distance info from the free Cannondale App.
Features
- Built with plenty of room for tyres up to 40mm wide, for comfort, grip and adventurous capability
- Women's specific touchpoint includes Fabric Scoop Flat Elite Saddle
- 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
Technical Specification
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, 31.8, 7° |
HANDLEBAR | Cannondale 3, butted 6061 alloy, 16 deg flare drop |
GRIPS | Cannondale Grip Bar Tape with 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 105, 11-34, 11-speed |
CRANKSET | Cannondale 1, BB30a, FSA rings, 46/30 |
CHAIN | Shimano HG601, 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-400, 12x142 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 Flat Elite, cro-mo rails |
SEATPOST | Cannondale 2, carbon, 27.2 x 350mm |
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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