Keep Pedaling
(888) 880-3811

Outlet: Niner Air 9 RDO 4 Star X01 Bike

Item #: ZY221A06
Availability Please make a selection
Quantity   Out of stock.

Tell a friend! We'll send your friends the page and your message.
Note: You and your friend's email addresses are only used once as a referral. We will not collect or store the email addresses.

Friend's Name:
Your Name:
Friend's Email:
Your Email:
(500 char. max)
Notify Me
Receive an email when this product becomes available.
Enter your name and email to be notified when this product is in stock and available to purchase.
First Name:
Last Name:


Niner Air 9 RDO 4 Star X01 Bike

The Niner Air 9 RDO is a full-on geared-only race machine. Niner has proven year after year that they have 29er hardtail geometory down, which they are demonstrating yet again with the new Air 9 RDO. The Air 9 RDO features fully-housed internal cable routing, new carbon layup, smaller junctions, tapered headtube, a newly positioned rear disc brake post mounts, and a PF30 carbon bottom bracket shell. Niner decided to go with a PF30 bottom bracket shell for the Air 9 RDO geared-only carbon hardtail to negate the need for an alloy insert which ultimately saves weight. The PF30 bottom bracket shell allows for 24mm or 30mm spindle cranks to be installed, however this frame is not compatible with an EBB (hence ‘geared-only’). Also, repositioning the rear brake mount inside the chainstay has helped make the whole rear end much stiffer. Niner is now using tapered headtubes on all their new frames creating a stiffer front end which drastically improves the handling. On the new Air 9 RDO, Niner also decided to go with a very sleek integrated headset that is lightweight and easy to install and maintain. Although it’s “Race Day Optimized”, the new Air 9 RDO is an awesome bike that anyone could enjoy. Providing their proven hardtail geometry on a lightweight carbon frame Niner definitely knew what they were doing when they designed the new Air 9 RDO.

X01 brings SRAM’s 11 speed mountain drivetrain to the masses with a lower price point without sacrificing performance. X01 is slightly heavier than XX1 (the difference is under 100g) but is still much lighter than any 2x10 setup out there while still offering a wide gear range thanks to the 10-42T X-Dome cassette. The new X01 cranks feature carbon arms and a removable spider (much like the X0 cranks) along with SRAM’s new X-Sync tooth profile which acts as a built in chain guide system. The rear derailleur’s X-Horizon design eliminates any vertical movement which reduces shift forces and prevents “ghost shifting”. The X01 drivetrain brings the latest and greatest SRAM technologies to your new complete bike offering a simple, clean, and more importantly, reliable drivetrain to your Niner Air 9 RDO.

Niner Air 9 RDO 4 Star X01 Bike Features

  • 73mm PF30 BB width
  • PF30 BB adaptable to threaded via adapters
  • Not compatible with aftermarket EBB systems
  • 31.6mm seat post size, 400mm length recommended
  • 34.9mm front derailleur, high mount, bottom pull
  • 34.9mm seat collar size
  • 1.125" - 1.5" tapered headtube with integrated (Campy style) headset (headset included). Cane Creek standard description: IS42/28.6|EC52/40
  • Small frame has one bottle mount in the front triangle. Medium, Large and Extra-Large have two bottle mounts inside the fron triangle
  • Replaceable derailleur hanger
  • Titanium chain drop and chain suck protection pieces
  • Protective 3M tape under downtube
  • Integrated aluminum head badge for internal, full-housing cable routing
  • 135mm QR rear spacing
  • Can fit up to a 2.4" tire (tire size varies by brand, some tires may not fit)
  • Compatible with standard 3x chainring systems
Frame Niner Air 9 RDO
Fork Fox Float CTD Fit, Kashima Coating, 100mm travel, 15mm thru axle
Wheels Stan's NoTubes 3.30/ZTR Arch EX, 15mm Front, 135mm QR Rear
Tires Schwalbe Rapid Rob EVO 2.4" front / Schwalbe Racing Ralph EVO 2.25" rear
Brakes SRAM Elixir 9 Trail, 180/160mm G2 rotors
Shifter SRAM X01 11 speed
Rear Derailleur SRAM X01 11 speed
Front Derailleur N/A
Cassette SRAM XG-1195 11spd 10-42T
Chain SRAM PC-1170
Crankset SRAM X01 32T
Bottom Bracket SRAM PF30
Saddle WTB Volt Race, Niner Graphic
Seatpost Niner Carbon Seat Post, Red Graphic
Handlebar Niner Flat Top 780mm, Red Graphic
Stem Niner Alloy Stem, Red Graphics

Niner Air 9 RDO Frame Geometry (80mm Fork)
Size Extra Small Small Medium Large Extra Large
Effective Top Tube Length 572mm 587mm 603mm 622mm 641mm
Seat Tube Length 356mm 394mm 419mm 483mm 533mm
Head Tube Length 100mm 105mm 110mm 125mm 145mm
Head Angle 71° 71° 72° 72° 72°
Seat Angle 74° 74° 74° 74° 74°
BB Drop 62mm 62mm 62mm 62mm 62mm
Front Center 650mm 650mm 656mm 675mm 695mm
Wheel Base 1066mm 1082mm 1088mm 1107mm 1127mm
Chain Stay Length 439mm 439mm 439mm 439mm 439mm
Reach 401mm 414mm 428mm 443mm 457mm
Stack 596mm 600mm 610mm 624mm 643mm
Standover Height 685mm 719mm 739mm 790mm 831mm


Niner Air 9 RDO Frame Geometry (100mm Fork)
Size Extra Small Small Medium Large Extra Large
Effective Top Tube Length 574mm 590mm 607mm 626mm 645mm
Seat Tube Length 356mm 394mm 419mm 483mm 533mm
Head Tube Length 100mm 105mm 110mm 125mm 145mm
Head Angle 70° 70° 71.1° 71° 71°
Seat Angle 73° 73° 73° 73° 73°
BB Drop 54mm 54mm 54mm 54mm 54mm
Front Center 640mm 655mm 660mm 680mm 700mm
Wheel Base 1073mm 1088mm 1094mm 1114mm 1134mm
Chain Stay Length 439mm 439mm 439mm 439mm 439mm
Reach 390mm 404mm 418mm 433mm 446mm
Stack 604mm 608mm 617mm 631mm 651mm
Standover Height 688mm 724mm 744mm 796mm 837mm

Jenson USA ships worldwide, including APO/FPO addresses. For a quote, simply add the items you are interested in to your shopping cart and look for the "Shipping Options" box. You don't have to login or create an account to see shipping charges.

Some manufacturers restrict where we can ship their products. If this item has shipping restrictions, they are listed below. If you'd like to buy an item that we cannot ship to your preferred address, we can accept your foreign credit card and ship to a USA address for you.

Get free shipping with your $50 purchase today when you choose Standard Shipping at checkout. Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items

Due to manufacturer restrictions, this product cannot be shipped to the following locations:
  • Afghanistan
  • Albania
  • Algeria
  • American Samoa
  • Andorra
  • Angola
  • Anguilla
  • Antigua and Barbuda
  • Argentina
  • Armenia
  • Aruba
  • Australia
  • Austria
  • Azerbaijan
  • Bahamas
  • Bahrain
  • Bangladesh
  • Barbados
  • Belarus
  • Belgium
  • Belize
  • Benin
  • Bermuda
  • Bhutan
  • Bolivia
  • Botswana
  • Brazil
  • Brunei Darussalam
  • Bulgaria
  • Burkina Faso
  • Burundi
  • Cambodia
  • Cameroon
  • Canada
  • Cape Verde
  • Cayman Islands
  • Central African Republic
  • Chad
  • Chile
  • China
  • Colombia
  • Congo
  • Congo, The Democratic Republic
  • Costa Rica
  • Croatia
  • Cyprus
  • Czech Republic
  • Denmark
  • Djibouti
  • Dominica
  • Dominican Republic
  • Ecuador
  • Egypt
  • El Salvador
  • Equatorial Guinea
  • Estonia
  • Ethiopia
  • Faroe Islands
  • Fiji
  • Finland
  • France
  • French Guiana
  • French Polynesia
  • Gabon
  • Gambia
  • Georgia
  • Germany
  • Ghana
  • Gibraltar
  • Greece
  • Greenland
  • Grenada
  • Guadeloupe
  • Guatemala
  • Guinea
  • Guinea-Bissau
  • Guyana
  • Haiti
  • Honduras
  • Hong Kong
  • Hungary
  • Iceland
  • India
  • Indonesia
  • Ireland
  • Israel
  • Italy
  • Jamaica
  • Japan
  • Jordan
  • Kazakhstan
  • Kenya
  • Korea, Republic of
  • Kuwait
  • Kyrgyzstan
  • Lao People's Democratic Republic
  • Latvia
  • Lebanon
  • Lesotho
  • Liechtenstein
  • Lithuania
  • Luxembourg
  • Macao
  • Macedonia
  • Madagascar
  • Malawi
  • Malaysia
  • Maldives
  • Mali
  • Malta
  • Martinique
  • Mauritania
  • Mauritius
  • Mexico
  • Monaco
  • Mongolia
  • Montserrat
  • Morocco
  • Mozambique
  • Namibia
  • Nepal
  • Netherlands
  • Netherlands Antilles
  • New Caledonia
  • New Zealand
  • Nicaragua
  • Niger
  • Nigeria
  • Norway
  • Oman
  • Pakistan
  • Panama
  • Papua New Guinea
  • Paraguay
  • Peru
  • Philippines
  • Poland
  • Portugal
  • Qatar
  • Reunion
  • Romania
  • Rwanda
  • Saint Kitts and Nevis
  • Saint Lucia
  • San Marino
  • Saudi Arabia
  • Senegal
  • Seychelles
  • Sierra Leone
  • Singapore
  • Slovakia
  • Slovenia
  • Somalia
  • South Africa
  • Spain
  • Sri Lanka
  • Suriname
  • Swaziland
  • Sweden
  • Switzerland
  • Syrian Arab Republic
  • Taiwan
  • Tanzania, United Republic Of
  • Thailand
  • Togo
  • Trinidad and Tobago
  • Tunisia
  • Turkey
  • Turkmenistan
  • Turks and Caicos Islands
  • Uganda
  • Ukraine
  • United Arab Emirates
  • United Kingdom
  • United States, Puerto Rico
  • Uruguay
  • Uzbekistan
  • Vanuatu
  • Venezuela
  • Vietnam
  • Virgin Islands, British
  • Wallis and Futuna
  • Yemen
  • Zambia
  • Zimbabwe

Email Specials

Sign up for our weekly specials delivered via email


Free Shipping Offer

Get free Standard Shipping with your $50 purchase today! Just choose Standard Shipping during checkout.

Please note this offer is only available to physical shipping addresses in the 48 continental United States (no PO Boxes), and oversize charges still apply on some heavy/large items.