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 M50 29" Mountain Bike 2021
Blending comfortable compliance with aggressive, race-focused geometry, the Orbea Alma M50 29" Mountain Bike is fully equipped to take on the challenges of modern cross-country. The OMR carbon construction shaves 550 grams off the aluminium Alma frame, delivering lightweight performance and comfortable vibration damping. Compliant seatstays add flex to take the edge off rough terrain, and internal cable routing sees clean lines throughout the frame. Built for speed, the Alma M50 is the perfect platform to push your endurance boundaries.
Developed in conjunction with some of the world's fastest riders, the aggressive geometry provides responsive handling that excels on hard efforts. Efficient yet comfortable, the Alma range is the choice of elite riders worldwide who do not require the complexity of a full-suspension bike. A Shimano XT rear derailleur boosts shifting performance, with its compact Shadow Plus design being both durable and lightweight. The 100mm RockShox Judy Silver TK Remote Solo Air is adjustable for a wide range of rider weights and preferences and features a handlebar-mounted remote lockout to enhance efficiency on steep climbs. Fast and efficient, the tubeless-ready Orbea OC1 wheelset and Maxxis Ikon tyres are a perfect pairing for hardpack cross-country trails.
Highlights
- Orbea Monocoque OMR carbon construction
- Rattle-free internal cable routing
- RockShox Judy Silver TK Remote Solo Air fork with remote lockout
- Shimano XT/Deore 12-speed drivetrain, with 10-51t range
- Orbea OC1 tubeless-ready wheels
- Fast-rolling Maxxis Ikon 2.2” tyres
Technical Specification
| Frame | Orbea Alma Carbon OMR, Boost 12x148, press fit bottom bracket, internal cable routing |
| Fork | RockShox Judy Silver TK Remote Solo Air 100 QR15x110 Boost |
| Headset | FSA 1-1/8 - 1-1/2" Integrated |
| Stem | Orbea OC1 31.8mm diameter, 7-degrees |
| 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 XT M8100 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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