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 Apex 1 Gravel Bike
Discover the ultimate gravel bike designed for adventurous souls who crave exploration. Break free from the norm and embrace boundless possibilities with the Topstone Carbon and its unique Kingpin suspension system, engineered for journey-ready versatility. Whether embarking on a bikepacking escapade, chasing exhilarating gravel thrills, or navigating technical terrain with ease using the Lefty Oliver fork, this bike is your passport to uncharted territories where no path is impassable. Grip the dirt with confidence, carving corners with conviction thanks to Kingpin's unrivaled grip and comfort, offering real suspension where it matters most without the complexity of shocks or links. With plentiful mounts and ample space for the burliest tires, the Topstone Carbon is tailored for those who thrive on the roads less traveled, whether it's a light day trip, a packed lunch ride, or a weekend expedition.
Technical Specification
| Frame | Topstone Carbon, Kingpin suspension system, SmartSense compatible, Proportional Response construction, 12x142mm thru-axle, 27.2 dropper post ready, BSA 68mm threaded BB, DirectLine internal cable routing, 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 |
| Rims | DT Swiss G540, 28h, 24mm inner width |
| Hubs | (F) Formula cartridge bearing, 12x100mm centerlock / (R) Formula cartridge bearing, 12x142mm centerlock |
| Spokes | Stainless Steel, 14g |
| Tires | Vittoria Terreno Dry, 700x38c, tubeless ready |
| Pedals | Not included |
| Crank | SRAM Apex 1 Wide Direct Mount, 40T |
| Bottom Bracket | SRAM DUB BSA Road 68 Wide |
| Chain | SRAM Apex, 12-speed |
| Rear Cogs | SRAM PG-1231 XPLR, 11-44, 12-speed |
| Rear Derailleur | SRAM Apex XPLR |
| Shifters | SRAM Apex, hydraulic disc, 12-speed |
| Handlebar | Cannondale 3, butted 6061 Alloy, 16 deg flare drop |
| Grips | Fizik Solocush Soft, 3mm |
| Stem | Cannondale 3, 6061 Alloy, 31.8, 7° |
| Headset | Integrated, 1-1/8" - 1.5" |
| Brakes | SRAM Apex hydraulic disc, 160/160mm Centerline rotors |
| Saddle | Fizik Aliante Delta, S-alloy rails |
| Seatpost | Cannondale 3, 6061 Alloy, 27.2x350mm |
| Sizes | XS, S, M, L, XL |
| Extra(s) | StrapRack Tool Carrier |
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.
Cannondale Topstone Carbon Apex 1 Gravel Bike Sizing
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