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 Hellga Expert 686 Womens Mountain Bike 2017
Providing superb traction and control on a huge range of terrain, the Specialized Hellga Expert 686 Womens Mountain Bike 2017 is perfect if you want to inject some more fun and excitement into your off-road riding. The fat 29 x 4.6” tyres not only increase puncture resistance but add unparalleled levels of grip over sand, snow, deep mud and even singletrack, allowing you to hit the downhills faster than you ever thought possible.
The Hellga’s frame is constructed with Specialized’s M4 Premium Aluminium, which boasts durability and a very low weight, making it perfect for day-long outings, or even bike packing across harsh terrain. The FACT carbon fork also enhances the handling of the Hellga, absorbing trail inconsistencies and with the larger wheels, act as front suspension.
With a SRAM X01 rear derailleur, the Hellga is able to reduce overall weight and increase efficiency due to its one-by chainring design. This gearing has a large range, enabling you to spin up climbs and perform at high speeds. The one-by chainring also eliminates any chainring slip, meaning you’ll never stop by the trail-side having to fix your slipped chain again.
Shimano Deore XT hydraulic disc brakes are behind the immense stopping power of the Hellga Expert, commanding the perfect level of braking actuation to see you safely down to the bottom of the singletrack. The combination of 160/180mm rotors also allows you to flow around corners with the perfect level of bite as and when you need it.
Features
Hellga’s M4 Premium Aluminium frame with ultra-low standover is lightweight, durable, and provides a confident and manoeuvrable ride both up and down the trail
The lightweight FACT carbon fork delivers superb handling and control while absorbing trail chatter
Tackle dirt, sand, and snow with equal confidence, thanks to the Hellga’s 26x4.6” Ground Control Fat tyres, featuring a custom tread pattern for great traction, acceleration and control
Please note: 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 M4 Aluminium, smooth welds, tapered head tube, forged post-mount disc dropouts, 190mm rear hub spacing, replaceable alloy derailleur hanger |
FORK | Specialized FACT carbon, full monocoque, tapered steerer, 135mm hub spacing, open QR dropouts |
HEADSET | 1-1/8" upper, 1-1/2" lower, threadless, Campy style, cartridge bearings |
STEM | Specialized Stout XC, 3D forged alloy, 4-bolt, 6-degree rise, anti-corrosion hardware |
HANDLEBARS | Specialized XC, butted 7050 alloy, 8-degree backsweep, 6-degree upsweep, 10mm rise, 31.8mm |
FRONT BRAKE | Shimano Deore XT, hydraulic disc, metallic pads w/ fins, 180mm rotor |
REAR BRAKE | Shimano Deore XT, hydraulic disc, metallic pads w/ fins, 160mm rotor |
BRAKE LEVERS | Shimano XT, hydraulic, reach adjust |
REAR DERAILLEUR | SRAM X01 Type 2.1, 11-speed, carbon cage |
SHIFT LEVERS | SRAM X1, 11-speed, SL trigger |
CASSETTE | SRAM X1, 11-speed, 10-42t |
CHAIN | KMC X11L, 11-speed, w/ reusable MissingLink |
CRANKSET | e.13, 11-speed, PF30, 100mm spindle, 28T |
PEDALS | Specialized Bennies, 6061 alloy body, sealed cartridge, 4.5mm removable pins |
FRONT WHEEL | Specialized Stout XC 90, disc, alloy, single wall, 90mm wide, sleeve joint, hookless design, 32h |
REAR WHEEL | Specialized Stout XC 135, Hi Lo disc, alloy, sealed cartridge bearings, QR, 32h |
FRONT TYRE | Specialized Ground Control Fat, 120TPI, folding bead, 26x4.6" |
REAR TYRE | Specialized Ground Control Fat, 120TPI, folding bead, 26x4.6" |
SADDLE | Specialized Body Geometry Women's Myth Comp, hollow Cr-Mo rails, 155mm |
SEATPOST | Alloy, 2-bolt, 12.5mm offset, 30.9mm, anti-corrosion hardware |
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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