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.
Orbea Alma H20 29" Mountain Bike 2021
Entry-level pricing without an entry-level ride character, the Orbea Alma H20 29" Mountain Bike is ready to take your cross-country riding to new heights. The hydroformed aluminium frameset is fast and responsive, built with lightweight performance in mind. The butted tubing lowers the weight without impacting the strength of the frame, ensuring it provides a stiff pedalling platform for climbs and sprints. Performance on the climbs is further aided by the handlebar-mounted remote fork lockout, which allows you to reduce energy loss from the suspension at the flick of a switch.
The RockShox Judy Silver TK Remote Solo Air features 100mm of silky smooth travel, helping to iron out roots and rocks on the trail. Its air adjust feature ensures it can be altered for a wide range of rider weights, helping you to dial in your perfect settings. The latest in Shimano 12-speed technology sees a wide 10-51t gear range, supplying simple 1x performance without losing the ratios needed for cross country climbing. An SLX rear derailleur bats far above this model's price point, providing crisp, smooth shifting and a compact design thanks to Shadow Plus technology. Maxxis Ikon tyres provide high rolling speeds for the 29” wheels and are the perfect accompaniment for long days in the saddle.
Highlights
- Hydroformed aluminium frame for responsive, lightweight performance
- Rattle-free internal cable routing
- RockShox Judy Silver TK Remote Solo Air 100mm suspension fork
- Handlebar-mounted remote suspension lockout
- Orbea OC1 tubeless-ready wheels
- Shimano 12-speed drivetrain, with wide 11-51t range
- Fast-rolling 29" Maxxis Ikon 2.2” tyres
Technical Specification
| Frame | Orbea Alma Hydro Alloy, Boost 12x148, BSA BB, internal cable routing |
| Fork | RockShox Judy Silver TK Remote Solo Air 100 QR15x110 Boost |
| Headset | Acros Alloy 1-1/8 - 1-1/2" Integrated |
| Stem | Orbea OC1 31.8mm diameter, 7-degree |
| Handlebar | Orbea OC1 Flat, 31.8mm diameter, 740mm width |
| Front Brake | Shimano MT201, hydraulic disc |
| Rear Brake | Shimano MT201, hydraulic disc |
| Brake Levers | Shimano MT201, hydraulic Disc |
| Rear Derailleur | Shimano SLX M7100 SGS Shadow Plus, 12-speed |
| Shift Levers | Shimano Deore M6100, 12-speed |
| Chain | Shimano M6100, 12-speed |
| Cassette | Shimano CS-M7100 10-51t, 12-speed |
| Crankset | Shimano MT511, 32t |
| Front Wheel | Orbea OC1 25c, 29”, tubeless-ready |
| Rear Wheel | Orbea OC1 25c, 29”, tubeless-ready |
| Front Tyre | Maxxis Ikon 2.20" FB 60 TPI Dual, clincher |
| Rear Tyre | Maxxis Ikon 2.20" FB 60 TPI Dual, clincher |
| Saddle | Selle Royal Seta Sport |
| Seatpost | Orbea OC2 forge head 27.2 |
| Pedals | Available to be purchased separately |
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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