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.
Argon 18 Krypton CS 105 5800 Disc Road Bike 2018
The Argon 18 Krypton CS 105 5800 Disc Road Bike is the perfect workhorse for the aspiring cyclist looking to take their riding to the next level. The Krypton CS is built around a high-grade carbon frameset that has been designed with supreme comfort in mind - the tubing profiles offer exceptional vertical compliance to help dampen vibrations from the road, while the fork is radically shaped in order to further smooth out road buzz. That's not to say this bike is a slouch - the carbon layup has been carefully arranged to offer a rigid pedalling platform. The DT-Swiss thru-axles also assist with frame stiffness, helping ensure maximum pedalling efficiency.
The Argon Krypton CS provides ample clearance for up to a 32mm tyre, making this a bike you can depend on whatever the road surface. The frame also features technological innovations unique to Argon 18. The 3DPLUS system, for example, is an integrated headset unit that merges seamlessly with the frame, providing a wealth of sizing options whilst remaining super stiff and improving aerodynamics. Combine this with the internal cable routing, and you have a clean and seamless frameset that looks just as good as it rides. An in-built chainsuck guard and chain catcher render this a truly robust, 'real-world' option for a variety of riding styles.
The flat mount Shimano disc brakes guarantee you assured and controlled stopping power and help make this a truly year-round bike. Shifting is provided by Shimano's ever-popular 105 groupset, with a compact 50/34 chainset and a wide-ranging 11-32 cassette meaning you'll be ready to spin up any gradient. The 27mm Challenge Paris Roubaix Plus tyres, meanwhile, provide comfort and grip on rugged roads, and the Vision wheelset is as tough as it is fast-rolling. Rounded out with a vibration-damping carbon seatpost and a comfortable Prologo saddle, this is a classy bike choice for the rider who wants wide versatility and premium performance.
FEATURES
- Full carbon frameset lends stiffness at an incredibly low weight
- Fully integrated system for superior aerodynamic performance
- Argon Fit System means that every size is carefully tailored to the rider's needs
- 3D System headtube allows for further rider optimisation without sacrificing stiffness
- Full Shimano 105 groupset ensures reliable shifting
Technical Specification
| FRAME | Argon 18 carbon frame, 12mm thru-axle |
| FORK | Argon 18 carbon frame, 12mm thru-axle |
| HEADSET | FSA 30 + 3DPLUS, 1" 1/2 |
| STEM | FSA OS-168, alloy |
| HANDLEBARS | FSA Omega, alloy |
| BAR TAPE | Black |
| FRONT BRAKE | Shimano RT81, 160mm rotor |
| REAR BRAKE | Shimano RT81, 140mm rotor |
| FRONT DERAILLEUR | Shimano 105 5800, braze-on |
| REAR DERAILLEUR | Shimano 105 5800, 11-speed |
| SHIFT LEVERS | Shimano RS505 |
| CASSETTE | Shimano 105 5800, 11-32 |
| CHAIN | FSA Team Issue, 11-speed |
| CRANKSET | Shimano 105 5800 50/34, 11-speed |
| BOTTOM BRACKET | Shimano BB Press Fit, SM-BB71-41B |
| PEDALS | NA |
| FRONT WHEEL | Vision Team 30 Disc |
| REAR WHEEL | Vision Team 30 Disc |
| FRONT TYRE | Challenge Paris Roubaix Plus 700x27, clincher |
| REAR TYRE | Challenge Paris Roubaix Plus 700x27, clincher |
| SADDLE | Prologo Kappa RS (STN) |
| SEATPOST | Argon 18 ASP-1600 carbon, 27.2mm |
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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