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NINER SIR 9 2-STAR BIKE
Item #: BI004058
$1,916.94
MSRP $2,949.00
SAVE 35 %
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Black/Bronze
Size:Small
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Please Note: This bike is not eligible for shipping and can only be purchased at one of our retail locations
Niner SIR 9 2-Star Bike
Real is Steel
"Steel is real" is what you'll hear people who ride steel-framed mountain bikes say as they descend from the tops of the tallest mountains and flow over the fun single tracks. Though the frames may be heavier than aluminum and carbon, steel frames are rugged, reliable, and incredibly comfortable over the roughest trails. The Niner SIR 9 2-Star Bike is here to take you on your next adventure. The Reynolds 853 Steel Frame uses 120mm of travel on the front and is compatible with 29x2.4" tires or 27.5x3.0" tires. The Trail Country geometry blurs the lines between modern trail bike geometry and traditional cross-country geometry making this perfect for long pedaling rides, stiff climbs, and extended descents. The frame features 18 mounting points so you can use this as your bikepacking bike, internal dropper post routing, and a lifetime frame warranty.
The 2-Star version of the Niner SIR 9 comes with a SRAM SX Eagle 12-speed drivetrain. The 32T chainring on the front is paired with an 11-50T cassette on the rear that makes climbing and pedaling through the most demanding terrain much easier. SRAM Level hydraulic disc brakes provide highly reliable stopping power so you can descend under control. Niner alloy rims are paired with Schwalbe Nobby Nic Evo Super Trail tires that can be set up tubeless for a smoother ride, better traction, and fewer flats. If you want the most versatile mountain bike out there, then you'll love riding the SIR 9.
Features
- Reynolds 853 steel frame with wide tire clearance, internal dropper post routing, and 18 mounting points for racks, fenders, and bottle cages
- SRAM SX Eagle 12-speed drivetrain performs well in various riding conditions
- SRAM Level hydraulic disc brakes provide highly reliable stopping power
- Tubeless-ready rims and tires for a smoother ride, better traction, and fewer flats
| Frame | Reynolds 853 Steel |
|---|---|
| Fork | Marzocchi Bomber Z2 Rail, Sweep Adj, 120mm Travel, 44mm Offset |
| Rear Shock | STEEEEEEEL |
| Headset | NIner Internal ZS44/28.6|ZS56/40 |
| Shifters | SRAM SX Eagle, 12-Speed |
| Front Derailleur | Absolutely Not |
| Rear Derailleur | SRAM SX Eagle, 12-Speed |
| Crankset | SRAM X1 1K Eagle DUB, 32T |
| Bottom Bracket | SRAM DUB PF30 |
| Chain | SRAM SX Eagle, 12-Speed |
| Cassette | SRAM PG-1210, 11-50T |
| Brakes | SRAM Level Hydraulic Disc, 180/160mm Travel |
| Wheelset | Niner Alloy, 30mm Inner Width, Niner Boost Hubs |
| Tires | Schwalbe Nobby Nic Evo Super Trail TLE Addix SpeedGrip, 29x2.6" / 29x2.3" |
| Handlebar | Race Face Aeffect R 780mm Wide, 20mm Rise, 35mm Clamp |
| Stem | Race Face Aeffect R 40mm, 35mm Clamp |
| Grips/Bar Tape | Niner Grrrrrrrrrrips L/O Nylon Soft Compound |
| Seatpost | Niner Alloy, 370mm |
| Seatclamp | Bolt-Type |
| Saddle | Niner Custom TR w/ CrMo Rails |
| Intended Use | Trail, XC |
Note: Components are subject to change without notice.
| Size | Small | Medium | Large | Extra Large |
|---|---|---|---|---|
| A: Seat Tube Length | 396 | 421 | 485 | 533 |
| B: Effective Top Tube | 595 | 603 | 627 | 652 |
| C: Stack | 611 | 620 | 634 | 652 |
| D: Reach | 410 | 425 | 445 | 465 |
| E: BB Height | - | - | - | - |
| F: BB Drop | 52 | 52 | 52 | 52 |
| G: Head Tube Length | 100 | 110 | 125 | 146 |
| H: Head Tube Angle | 68 ° | 68 ° | 68 ° | 68 ° |
| I: Seat Tube Angle | 74 ° | 74 ° | 74 ° | 74 ° |
| J: Standover Height | 721 | 739 | 791 | 830 |
| K: Chainstay Length | 430 | 430 | 430 | 430 |
| L: Wheelbase | 1118 | 1136 | 1162 | 1189 |
| Crank Arm Length | 170 mm | 175 mm | 175 mm | 175 mm |
| Stem Length | 40 mm | 40 mm | 40 mm | 50 mm |
| Handlebar Width | 780 mm | 780 mm | 780 mm | 780 mm |
| Frame Size | Small | Medium | Large | Extra Large |
|---|---|---|---|---|
| Rider Height | 5'3" - 5'9" 160 - 175 cm |
5'8" - 6'0" 173 - 183 cm |
5'11" - 6'3" 180 - 191 cm |
6'3" - 6'7" 191 - 201 cm |
| Size | Small | Medium | Large | Extra Large |
|---|---|---|---|---|
| A: Seat Tube Length | 15.6 | 16.6 | 19.1 | 21.0 |
| B: Effective Top Tube | 23.4 | 23.7 | 24.7 | 25.7 |
| C: Stack | 24.1 | 24.4 | 25.0 | 25.7 |
| D: Reach | 16.1 | 16.7 | 17.5 | 18.3 |
| E: BB Height | - | - | - | - |
| F: BB Drop | 2.0 | 2.0 | 2.0 | 2.0 |
| G: Head Tube Length | 3.9 | 4.3 | 4.9 | 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 | 28.4 | 29.1 | 31.1 | 32.7 |
| K: Chainstay Length | 16.9 | 16.9 | 16.9 | 16.9 |
| L: Wheelbase | 44.0 | 44.7 | 45.7 | 46.8 |
| Crank Arm Length | 170 mm | 175 mm | 175 mm | 175 mm |
| Stem Length | 40 mm | 40 mm | 40 mm | 50 mm |
| Handlebar Width | 780 mm | 780 mm | 780 mm | 780 mm |
| Frame Size | Small | Medium | Large | Extra Large |
|---|---|---|---|---|
| Rider Height | 5'3" - 5'9" 160 - 175 cm |
5'8" - 6'0" 173 - 183 cm |
5'11" - 6'3" 180 - 191 cm |
6'3" - 6'7" 191 - 201 cm |
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CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
CALIFORNIA PROPOSITION 65 WARNING: This product can expose you to chemicals including (Cadmium, Phthalates, Bisphenol, Nickel (Metallic), di(2-ethylhexyl)phthalate "DEHP"), which is known to the State of California to cause cancer and/or cause birth defects or other reproductive harm. For more information, go to Q & A
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