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Orbea Alma 29 Silver S70 Complete Bike

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Item # ORB0067

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Item # ORB0067


There is little about the Orbea Alma platform that isn't compelling -- from its sharp, angular lines, to its nimble visage. But more importantly, with the well conceived build kit found on this Alma Silver S70, there are few who could dispute the Alma's natural ease as perhaps the ideal all-around hardtail.

Aside from being the world's first production carbon 29er, the Alma stands as a model of sharp design. We don't just mean those aforementioned sharp angles, though the Alma 29 has a few of those. We mean thoughtful, like a downtube that's oversized for stiffness and shaped to provide some protection for the rider from mud and spray from the front tire, acting like a fender. We also mean well-engineered. Take the 4x4 design; both the front and rear triangles are actually quadrangles, with four corners. The reasons for this are simple -- to increase the comfort for the rider.

The 4x4 design is based around the understanding that a triangle is nature's stiffest geometrical design because any forces on its points simply become tension or compression in the members (think chainstays, seatstays, and seat tube in the case of the rear triangle). By adding a short fourth member, which you can see in front of the dropout, Orbea's engineers have designed the rear end of the Alma to deflect some of the harsh input from the trail by way of the joints, or nodes, flexing slightly. The carbon lay-up is designed to allow a small degree of movement here without losing any torsional stiffness. This is the beauty of carbon in comparison to metals; where metals exhibit the same characteristics in all directions, carbon fiber can be tuned for different mechanical properties along different axes. The Alma front triangle is built in the same way to maximize your comfort and efficiency.

Orbea does all this with a monocoque molding process. That's to say that they make each Alma 29 frame as a one-piece homogenous structure. Without bonded joints where failures can occur and with fibers running continuously along the length of the tubes and through the intersections, the total strength of the bike is increased along with the durability. This version uses Orbea's Silver grade carbon fiber, and it's a material that offers great impact resistance and toughness -- two desirable characteristics for a bike frame that's made to hammer.

The Alma 29 is also designed and built in accordance with Orbea's SSN (size specific nerve) technology so that it offers the same comfort and performance characteristics across the size range. More specifically, each frame size has specific carbon lay-ups and tube dimensions. While optimization of the ride qualities is paramount, it would be pointless if the bike didn't shift flawlessly. This is why the Alma uses DCR (direct cable routing). It's made to use Gore's slick-shifting cables, and it comes with a complete set. The inner wires are sealed from start to finish and the routing on the underside of the top tube keeps them protected from the ravages of the trail.

The Alma uses a BB30 bottom bracket shell. While you can use standard cranksets with the included FSA adapters, you'll enjoy a 30% stiffer and lighter aluminum spindle if you use a BB30 crankset. The Alma 29 also uses a tapered head tube with a 1.5in lower bearing. When paired with a tapered fork, this increases the stiffness and stability of the front end. This is a big part of what makes it feel solid over rutted or rocky trails and through sketchy corners. Both of these details add performance by increasing stiffness right where it counts.

The S70 comes with a well-rounded selection of offerings from SRAM, starting with SRAM's battle-tested Reba 29 RLT front fork. The Reba 29 strikes that perfectly reliable balance between tunability and durability -- equipping you with everything you need and nothing you don't. An intelligent mix of SRAM's upper-tiered groups handle drivetrain duties, while a pair of Elixir 7 brakes provide plenty of stopping power for even the longest rutted-out descents. Mavic XM 317 wheels and Geax AKA XC tires are optimized for fast and twisty hardpack, but you might find this pair more than capable of handling whatever else your trails throw at you.

The Orbea Alma 29 Silver S70 is available in Small, Medium, and Large and comes in four colors: Yellow/Silver, White/Blue, White, and White/Red. All Orbea bicycle frames come with a lifetime warranty against manufacturing defect.

Tech Specs

Frame Material:
carbon fiber
Front Travel:
100 mm
Front Derailleur:
Rear Derailleur:
SRAM S1000
Bottom Bracket:
Brake Levers:
Avid Elixir 7
Brake Calipers:
Avid Elixir 7
Orbea OCII
Handlebar Rise:
Orbea OCII
Shimano HG 74
Tire Size:
29 in x 2.2 in
Valve Stem:
Orbea Zeus
Seatpost Diameter:
31.6 mm
Seatpost Length:
400 mm
Seat Collar:
alloy clamp
Selle Italia SL XC Flow
Recommended Use:
mountain biking
Manufacturer Warranty:
lifetime on frame

sizing chart

Bike size by rider height


Geometry chart


Geometry Chart


Alma 29

Seat Tube


Effective Top Tube






Stand Over


Head Tube Length


Head Tube Angle


Seat Tube Angle


Bottom Bracket Height




S 16.5in 22.6in 25.0in 15.2in 30.8in 4.3in 71.5 deg 73.0 deg 11.9in 17.3in 41.7in
M 18.5in 23.2in 25.2in 15.5in 31.7in 4.5in 71.5 deg 73.0 deg 11.9in 17.3in 42.1in
L 20.5in 24.4in 25.8in 16.5in 33.1in 5.1in 72.0 deg 73.0 deg 11.9in 17.3in 43.1in

Orbea Alma Geometry Chart

Reviews & Community


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awesome hardtail

  • Familiarity: I've put it through the wringer

i have owned this bike in the past and I must say it was one of the best hard tail mtn bikes I ever had. This bike handles very well on the trail and is extremely comfortable on long ride,which is typically unheard of from stiff hard tails. This is do to the slight curved drops in the rear which allow the bike some vertical compliance. It has a nice geometry and the BB30 bb makes the crank area a little stiffer thus allowing ample power transfer to the pedal. This bike is definitely my choice for hard tails on the market and I highly recommend it.

If you have specific questions on this bike i can speak from experience. I'm a sales rep for Competitive cyclist and can be reached directly at 801-736-6396 x 4074

awesome hardtail

I concur with Wes's input on the Alma 29er, Having gone through a few 29er bikes , I still prefer this HT over the rest of my bikes. Great on climbs and blazing fast on the Downhill sections.

Currently on the Black/Yellow 2013 frameset.. and this is my 3rd Alma 29er :) only draw back is the Gore seal cable, you cannot use any other cables out there. so far I understand that only Nokon and Gore can be use... looking forward for the 2014 version of the Alma.

Does a bike purchase require full assembly...

Does a bike purchase require full assembly upon arrival?

Usually not. It'll probably have the front wheel off, so you'll have to attach that, the pedals, the seat, and the various cables might need some adjusting. Shouldn't be more than 10-15 minutes work though.

yeah I don't know if this is how it's suppose to show up or not as I seem to be missing many parts.. I've emailed backcountry and I'm waiting for a reply.. I initially thought it was just wheels I was missing but I am missing the whole front end including my wheels..

yeah I don't know if this is how it's suppose to show up or not as I seem to be missing many parts.. I've emailed backcountry and I'm waiting for a reply.. I initially thought it was just wheels I was missing but I am missing the whole front end including my wheels..

what is the standover height for a medium?...

what is the standover height for a medium? i dont see any sizing info?

The standover height on the medium frame is 31.7 inches,