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.
Specialized Chisel Expert 1x Mountain Bike 2018
Step into the world of cross-country racing without breaking the bank with the Specialized Chisel Expert 1x Mountain Bike 2018. With a wide range of speed enhancing features, this bike utilises Specialized’s trickle down features from their renowned Epic, but at a price point more affordable for first time racers.
Constructed using Specialized’s D’Aluisio Smartweld M5 Alloy, the overall weight of the bike is impressively low but it’s also incredibly durable, meaning you can head out day after day and keep riding in the knowledge your bikes integrity will never falter. Because of this low weight, you can throw it around the trails easier than ever, and when you point it in the direction you want it to go, it will.
The entire bike is kept in line with the RockShox Reba RL 29 front fork, which offers 100mm of plush, impact absorbing suspension. Softening the blows and enhancing control over rougher terrain, this suspension system offers a 51mm offset to ensure that when you’re facing down steep gradients, you get the stable handling you yearn for. When twinned with Specialized’s tried and tested XC Geometry that’s been tirelessly tested throughout multiple World Cup wins, you get a comfortable and aggressive position for greater performance around the course, too.
SRAM’s Level TL hydraulic disc brakes are a perfect outfit for such a speed orientated bike, giving consistent, reliable and powerful braking in every situation imaginable. Training on damp, wet day around your local loop or heading out onto a dry, dusty course? No problem, this brakeset will see you heading into corners and descending with immense confidence.
Keeping you spinning up hill and reducing fatigue, the SRAM GX 11-speed drivetrain offers a wide range of gearing to see your surging along the flats and overtaking your rivals on the climbs. Equipped with a 10-42t cassette, you get a much deserved and more efficient amount of gears to play with.
Specialized’s own brand Alloy 29 clinchers with Fast Trak tyres connect all of these impressive features to the trail and stay strong, nimble and agile for the duration of your ride. The tyres are designed to reduce rolling resistance whilst offering incredible grip and puncture protection to see you taking faster lines through the bends, and the wheels are lightweight and strong enough for day-in, day-out training and racing.
Features
- Given its lightweight and ultra-stiff characteristics, M5 aluminium was the natural choice for the frame's construction. And when complemented with Specialized’s speed-focused XC 29 Geometry, D'Aluisio Smartweld technology, and internal cable routing, you get a bike that compromises nothing in delivering explosive speed, confident handling, and hassle-free maintenance
- A custom RockShox Reba RL 29 fork offers up 90/100mm of smooth travel (size-specific), while an easily accessible compression and rebound adjusts permit you to customize the feel according to the terrain at hand
- SRAM GX handles one-by shifting duties, practically eliminating dropped chains and reducing overall bike weight
Image shown for representation of colourway only, specification subject to change at any time. Bicycles do not come with pedals unless otherwise specified.
Technical Specification
FRAME | Specialized D'Aluisio Smartweld M5 Alloy, XC Geometry, internal cable routing, BSA BB, 12x148mm rear end, triangulated post-mount 160mm brake |
FORK | RockShox Reba RL 29, Solo Air, 51mm offset, 15x110mm thru-axle (S |
STEM | Specialized XC, 3D-forged alloy, 4-bolt, 6-degree rise |
HANDLEBARS | Specialized Mini-rise, 6000 alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 720mm width, 31.8mm clamp |
FRONT BRAKE | SRAM Level TL, hydraulic disc, organic pads, 160/180mm rotor |
REAR BRAKE | SRAM Level TL, hydraulic disc, organic pads, 160 rotor |
BRAKE LEVERS | SRAM GX, trigger, 11-speed |
REAR DERAILLEUR | SRAM GX, long cage, 11-speed |
SHIFT LEVERS | SRAM GX, trigger, 11-speed |
CASSETTE | SRAM NX, 11-speed, 10-42t |
CRANKSET | Race Face Aeffect |
FRONT WHEEL | Specialized Alloy 29, 25mm internal width, clincher |
REAR WHEEL | Specialized Alloy 29, 25mm internal width, clincher |
FRONT TYRE | Specialized Fast Trak, GRIPTON compound, 29x2.3", 60 TPI, Aramid folding bead, 2Bliss Ready |
REAR TYRE | Specialized Fast Trak, 2Bliss Ready, 29x2.3" |
SADDLE | Specialized Body Geometry Phenom Comp, Adaptive Edge design, Hollow Cr-Mo rails, 143mm |
SEATPOST | Specialized, alloy, 2-bolt, 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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