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.
With a sleek, minimalist aesthetic, and an A1 Premium Aluminium frame designed for raw speed, the Langster can tear up the track or tear through the city; with a two-sided, fix/fix hub for easy gearing change.
- A1 Premium Aluminium compact frame with integrated headset, fully manipulated tubing, and track geo excels in the city or at the velodrome
- Specialized FACT carbon fork provides precise steering through the tightest turns and ultra light weight
- Track-specific, square taper alloy crankarm for acceleration and power. Built for the velodrome
- Adjustable four-position oversized alloy stem with 31.8mm bar clamp for strength and versatile positioning
- Oversized aluminium handlebar is stiff for serious performance
FRAME Specialized A1 Premium Aluminium, fully manipulated tubing, compact design w/ track geo, integrated headset
FORK Specialized FACT carbon, carbon legs, Aluminium crown and steerer
HEADSET 1-1/8" sealed Cr-Mo cartridge bearings integrated w/ headset, 20mm alloy cone spacer, w/ 20mm of spacers
STEM Specialized Elite-Set, 3D-forged alloy, 4-position adjustable, 4-bolt 31.8mm clamp
HANDLEBARS Specialized Pista, alloy, deep track drop
FRONT BRAKE Tektro dual-pivot brake, Teflon pivots, forged alloy
REAR BRAKE Tektro dual-pivot brake, Teflon pivots, forged alloy
BRAKE LEVERS Tektro forged alloy, ergo design
CASSETTE Singlespeed sprocket, 16T
CHAIN KMC Z-510HX singlespeed
CRANKSET BCD 144, alloy track
CHAINRINGS 48T
BOTTOM BRACKET Cartridge bearing, square spindle, w/ crank stop right side, capless bolts
PEDALS Nylon flat test ride, loose ball, w/ reflectors
RIMS Alex Classic rim, double-wall alloy
FRONT HUB Track, bolt-on w/ track axle nuts, 32h
REAR HUB Track rear, fixed/free, bolt-on w/ track axle nut, 1 lockring, 32H
SPOKES Stainless, 14g
FRONT TYRE Specialized Espoir Sport, double BlackBelt, 60TPI, wire bead, 700x23c
REAR TYRE Specialized Espoir Sport, double BlackBelt, 60TPI, wire bead, 700x23c
INNER TUBES Lightweight, presta
SADDLE BodyGeometry Riva Road, Cr-Mo rails, 155mm
SEATPOST Specialized Sport, alloy, 27.2mm
SEAT BINDER Alloy, 31.8mm
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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