Combining the heart of the world's best road bikes with a flat-bar, urban-friendly form, Sirrus Comp Disc redefines the notion of versatility. Hydraulic disc brakes add confident braking in any weather with any load, plus the lightweight carbon fork and 2x10 FSA/Shimano drivetrain means lighter weight, smoother ride, and flawless shifting.
- Super light E5 fully-manipulated alloy disc frame, plus alloy fork with Cr-Mo steerer, built for high speed, low-fuss, and great versatility, with tapered head tube, internal routing, low-mount disc dropout, and rack/mudguard mounts
- Flak Jacket protection and a grooved tread make the 28c Specialized Nimbus tyres perfect for city or open road use
- Adjustable 4-position oversized forged alloy stem with 31.8mm bar clamp for strength and versatile positioning; plus BG Targa gel grips lock on and help alleviate hand pain and tingling fingers
- BodyGeometry Targa grips lock on and help alleviate hand pain and tingling fingers; integrated bar ends for changing hand position included
- Strong, reliable Tektro Draco hydraulic disc brakes for sure stopping and control in any weather with any load
- FSA Omega compact alloy crankset with 50/34 configuration for lightweight, wide-range gearing
- Sporty yet comfortable BG Targa Comp fitness saddle with light, durable hollow Cr-Mo rails
Frame: Specialized E5 Aluminium with low-mount disc dropout, fully manipulated butted tubing, smooth weld, internal cable routing, tapered/integrated headset, mudguard/rack eyelets
Fork: Sirrus Disc Fork, A1 Premium Aluminium crown, Cr-Mo steerer
Bottom Bracket: SRAM GXP
Brakes: Tektro Draco hydraulic disc
Cassette: Shimano HG-50 9-speed, 11-25
Chain: KMC X-9, reusable Missing Link
Chainset: FSA Omega, forged alloy
Chainrings: 50/34, alloy outer ring
Front Derailleur: Shimano FD-M440, top swing, dual pull
Handlebar Tape: BodyGeometry Targa lock-on w/ integrated bar end
Handlebar: Specialized double-butted alloy flat bar, 31.8mm, 6-degree backsweep
Headset: 1-1/8" FSA Campy-style, integrated cartridge, 15mm alloy cone spacer
Pedals: Sirrus nylon body, 1.5mm varus angle, symmetric alloy cage, toe clip capable
Rear Derailleur: Shimano 105
Saddle: BodyGeometry Targa Comp, Cr-Mo rails, 143mm
Seatpost: Specialized alloy, double bolt, 27.2mm
Seat Binder: Specialized alloy, double bolt, 27.2mm
Shifters: Shimano SLR440 Rapidfire
Stem: Specialized Elite-Set, 3D forged alloy, 4-position adjustable, 4-bolt, 31.8mm
Tyres: Specialized Nimbus w/ Flak Jacket, 26TPI, reflective sidewall, 700x28c
Tubes: Specialized presta valve
Wheels: Sirrus disc hubs SR300 rims, stainless 14g spokes
Technical Specification
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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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.
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