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Niner Air 9 Carbon X0 2011 Mountain Bike


Niner is dedicated to making their first carbon frame an extraordinary machine that goes way beyond status quo. Introducing the Niner Air 9 Carbon X0 2011 Mountain Bike : purpose-built to be incredibly light and fast,…

Niner Air 9 Carbon X0 2011 Mountain Bike


Niner is dedicated to making their first carbon frame an extraordinary machine that goes way beyond status quo. Introducing the Niner Air 9 Carbon X0 2011 Mountain Bike : purpose-built to be incredibly light and fast, combined with the razor sharp handling and forgiving ride you’ve come to expect from frames with the Air 9 designation. Structurally, this is a full carbon frame that utilizes alloy interfaces in critical areas (such as in the headtube bearing journals and bottom bracket). The high modulus carbon in specially designed layers and layup patterns create a light, strong frame and the alloy interfaces allow the precise tolerances that critical component interface areas demand.


Frame development began with reams of testing data, which helped Niner to determine the primary tube shape. FEA studies, physical mock-ups, years of experience and a rigorous industrial design phase have all contributed to this extraordinary design. Every decision, every shape and every tube has its origin in a design parameter that requires the Air 9 Carbon to hit very specific targets for stiffness and strength in all three planes. Key sections such as the downtube and bottom bracket area have received massive structural shaping to increase torsional rigidity and the swooping lines and angles of the Air 9 Carbon are functionally beautiful before they are aesthetically pleasing. All these features help to disperse energy, avoid stress risers and increase the natural damping characteristics of the material. The Air 9 Carbon features Bio-Centric EBB technology and CYA Bottom Bracket system – the most flexible BB/gearing system available. Run your Niner singlespeed or geared or take advantage of several BB inserts to accommodate your choice of bottom bracket technologies, including the new BB-30 standard.



Carbon monocoque frame with alloy interfaces / Custom carbon layup for ideal stiffness and damping characteristics / Tapered headtube technology / Internal cable routing / BioCentric EBB and CYA bottom bracket system for maximum drivetrain options


RockShox Reba XX 29er / 80/100/120mm travel / XX Motion Control damping / Dual Flow rebound / Dual Air spring / Xloc remote / External Beginning Stroke Rebound / External Floodgate and Lockout

Front Derailleur:


Rear Derailleur:

SRAM XO med cage

Number of Gears:



SRAM XO triggers





Bottom Bracket:

Included w/ crankset


SRAM XX 11-36





Front Brake:

Formula The One w/ 160mm rotors

Rear Brake:

Formula The One w/ 160mm rotors

Brake Levers:

Formula The One


Easton EC 70 31.8mm


Easton EA 90 31.8mm


Chris King taper


Lizard Skin Charger


Mavic TN719

Front Hub:

Hope Pro2

Rear Hub:

Hope Pro2

Front Tyre:

Maxxis Crossmark 2.1 folding

Rear Tyre:

Maxxis Crossmark 2.1 folding


Maxxis .8mm


WTB Silverado SLT


Thomson Masterpiece

Sizing Guides

Niner Bike Sizing Chart

Niner Bike Sizing Chart

Sizing Guide for Niner Bikes

Customer Reviews

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We offer a range of delivery services for our UK and International customers. UK Customers can select our FREE standard delivery option on most non bike orders over £20. Or if you’re in a hurry you can upgrade to our Next Day, Saturday or Sunday delivery services. You can also use our free Click & Collect service, where you can collect your purchases from a choice of over 50 Evans Cycles stores. International customers can benefit from FREE delivery on most orders and save UK VAT if we are shipping outside of the EU.

Bike build & delivery

UK bike delivery charge includes assembly by our fully trained mechanics, pre-delivery inspection and safety check, packing in our custom bike box, multi-tool and delivery from only £9.99 per bike.Click here to see how we deliver your bike

Standard, Next Day, Saturday & Sunday UK delivery

We offer a FREE standard delivery service on orders over £20, as well as Next Day, Saturday & Sunday delivery options to UK addresses. Click here for more details

Click & Collect

Using our Click & Collect service your order will be delivered to a choice of over 50 Evans Cycles stores nationwide for collection. This service is FREE of charge for all orders. To check store stock and collection times, use the "Check store stock" button above. Click here for more details

International delivery (Incl BFPO, ROI, Channel Island & Isle of Man)

We offer a FREE delivery service on most International orders. Orders delivered outside the EU are exempt from VAT. To calculate the charges for your order simply add products to your basket and proceed through the checkout process, where you will need to enter your delivery details. Our website will present you with the relevant delivery options and the charges for your basket of goods. Click here for more details.

Easy Returns

Our priority is to ensure that you are highly satisfied with your purchase. In the unlikely event that you are not, please feel free to return your goods within 90 days of the purchase date for a full exchange or refund. Returns can be made in your local store or sent back to our distribution centre.

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