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Niner Sir 9 Frame
Niner Sir 9 Frame

Niner Sir 9 Frame

Item #: FR186E02
USD$1,200.00
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Slate Blue
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Niner Sir 9 Frame

Niner Sir 9 frame

Thank you SIR, may I have another!

The SIR 9 returns as an all trail dominator. Revised geometry turns the SIR 9 into a modern trail bike set to ride over or through anything that stands in the way. Ride it hard. Ride it fast. After all, it’s made from a truly time-tested material that’s been air hardened and heat treated. The efficient, yet compliant ride quality of the SIR 9 harkens back to a simpler time. A time without linkages and complicated shock settings. A time where all the energy you put into the pedals moves you forward.

The Classic Reynolds 853 provides a supple, comfortable ride that will carry you through long days in the saddle. Boost spacing adds improved ride characteristics as well as versatility allowing you to build up your SIR 9 with either 29” wheels for maximum roll over, or 27.5” Plus if ultimate traction and stability are your preference. Adding to the SIR 9’s versatility is the ability to run either geared or single speed with Niner’s eccentric BB. The redesigned bottom bracket and chainstay junction improve ride quality while allowing greater tire clearance. A hidden plate inside the chainstay yoke stiffens and strengthens to improve power transfer. Eighteen mounting points for racks, fenders, bento box, water etc. along with integrated bag mounts means this SIR 9 is ready for the long haul.

The new SIR 9 begs the rider to push their limits and to have fun doing it

Features

  • REYNOLDS 853 STEEL PROVIDES THE SUPPLE, COMFORTABLE RIDE THIS LEGENDARY MATERIAL IS KNOWN FOR.
  • COMPATIBLE WITH 29X2.5 OR 27.5X3.0 TO OFFER THE CHOICE OF MAXIMUM ROLL OVER OR ULTRA TRACTION AND STABILITY.
  • REVISED GEOMETRY IS OPTIMIZED FOR MODERN TRAIL RIDING, LONG DAYS IN THE SADDLE AND ALL AROUND GOOD TIMES.
  • INTEGRATED BAG MOUNTS INSIDE FRONT TRIANGLE FOR THE ULTIMATE ADVENTURE SEEKERS
  • BENTO BOX MOUNTS ON TOP TUBE OFFER ADDITIONAL STORAGE OPTIONS WITHIN REACH.
  • NINER BIOCENTRIC 30 COMPATIBLE FOR RIDERS WHO WANT TO KEEP IT SINGLESPEED SIMPLE
  • 148 X 12 BOOST REAR SPACING FOR IMPROVED RIDE CHARACTERISTICS AND PLUS SIZE TIRE COMPATIBILITY
SPECIFICATIONS
Frame SIR 9 Reynolds 853 steel with revised trail geometry, 12 x 148mm Boost spacing
Wheel Size 29” or 27.5” plus
Fork 120mm, tapered recommended
Headset Included No. ZS 44/56 required
Headtube Diameter Tapered 44/56
Front Derailleur 34.9 side swing, front pull required
Bottom Bracket 73mm, PF30
Seatpost 30.9mm
Seat Clamp 34.9mm
Dropout Style 12 x 148mm (Axle included)
Accessory Mounts 3 water bottle cages, racks, fenders, frame bag, bento box
Cable routing External
Intended Use Trail
Weight
-
”GeometryChart”/
GEOMETRY (mm / inch)
Size Small Medium Large Extra Large
A: Seat Tube Length 396
15.6
421
16.6
485
19.1
533
21.0
B: Effective Top Tube 595
23.4
603
23.7
627
24.7
652
25.7
C: Stack 611
24.1
620
24.4
634
25.0
652
25.7
D: Reach 410
16.1
425
16.7
445
17.5
465
18.3
E: BB Height
0.0

0.0

0.0

0.0
F: BB Drop 52
2.0
52
2.0
52
2.0
52
2.0
G: Head Tube Length 100
3.9
110
4.3
125
4.9
145
5.7
H: Head Tube Angle 68.0 ° 68.0 ° 68.0 ° 68.0 °
I: Seat Tube Angle 74.0 ° 74.0 ° 74.0 ° 74.0 °
J: Standover Height 721
28.4
739
29.1
791
31.1
830
32.7
K: Chainstay Length 430
16.9
430
16.9
430
16.9
430
16.9
L: Wheelbase 1118
44.0
1136
44.7
1162
45.7
1189
46.8
Suggested Rider Height 5'3" - 5'9"
5'8" - 6'0"
5'11" - 6'3"
6'3" - 6'7"
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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
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  • 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
  • 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
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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.