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Niner ROS 9 4-Star X01 Bike

ITEM NUMBER: 018 NIN4R4
PRICE POINT:
$3,799.00

NINER TECHNOLOGY

For every model, whether it's their lightest cross country hardtail or the burliest full suspension bike, Niner considers how each angle or length will interact with big wheels to affect the finished build.

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The basic concept of the larger diameter is simple: it will keep your wheels on top of oncoming obstacles. Rather than riding IN the terrain, you'll be riding ABOVE it, gaining more control and stability on even the roughest trails.

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PRODUCT DESCRIPTION

Niner ROS 9 4-Star X01 Bike

What makes the ROS tick?

Keep It Steel, Stud. The 4130 Cro-Mo tube set of the ROS 9 is the trusted standard for durability and ride quality. Following the lines and design language of the SIR 9, these tubes have been beefed up to handle the abuse the ROS 9 is designed to shrug off. The super-short chainstays provide a lofty front end feel while the slack heat tube angle keeps the front end composed at Mach Loony speeds. A neutral bottom bracket height can be made low or high to slay YOUR trails by positioning the BioCentric 2 where it will do the most good. Construction details abound – They borrowed the unique dropout design developed for the SIR 9 to allow 142x12 Maxle use and house the stout alloy derailleur hanger. The dropout designs allow the chain stays and seat stays to be welded at any angle and provide far more surface area for a full weld around the tube’s end. The front derailleur hanger is removable with an alloy cover. Internal dropper post routing is optional, an alloy cover closes the port if you choose not to use it. Externally routed dropper posts utilize mounts under the top tube. Tabs under the bottom bracket shell accept a proprietary MRP XCG bash guard for optional extra protection. Full-housing cable routing for front and rear derailleurs using Niner’s bolt-on double housing clamps along top and down tubes complete the versatility. If you don’t need the guides, take them off and enjoy the clean look of the frame in singlespeed mode.

  • 44MM OS Headtube
  • Slack and Low Geometry w/ Extra-Short Chainstays
  • BIOCENTRIC II
  • Internal Dropper Post Routing
  • 142mm X 12mm Rear Spacing

FREE $200 value Pro Build Service

Every Niner Complete bike sold by Price Point includes professional assembly by our trained mechanics prior to shipment. With Price Point ProBuild, you'll receive the most thorough, highest-level service available. We will inspect your new frame, install, and tune all components, then partially disassemble it so that it is ready to ship directly to you. Upon arrival, you'll only need to unpack it and perform some basic re-assembly tasks in order to get your new Niner ready to ride.

Pro Build 30 Point Check List

  1. Inspect frame for any blemishes/defects, check frame alignment
  2. Frame prep: headtube and bottom bracket shell, face/clean surfaces as needed
  3. Install headset: apply light grease to frame and press cups
  4. Install bottom bracket: apply assembly compounds as spec'd (grease or carbon assembly compound)
  5. Install front derailleur: align with manufacturer's specs and torque to spec (direct mount Loctite mounting screws)
  6. Install cranks: grease spindle/bearing contact areas, torque crank bolts & spider bolts to manufacturer's specifications
  7. Check rear derailleur hanger alignment
  8. Install rear derailleur: grease threads and torque to spec
  9. Install fork: Press headset race, lightly grease all bearing contact points for headset
  10. Install stem: torque to spec
  11. Cut steer tube to proper length and install headset tensioner
  12. Install handlebar: torque to spec
  13. Install shifters
  14. Install brake levers
  15. Measure and cut shifter housing
  16. Attach derailleur cables
  17. Measure and cut brake housing
  18. Bleed brakes/attach brake cables
  19. True wheels and check spoke tension
  20. Install cassette, brake rotors and tires
  21. Align brakes: torque bolts to spec
  22. Install chain: check crossover gear and cut to length
  23. Tune rear derailleur: set limits and stretch cable
  24. Tune front derailleur: set limits and stretch cable
  25. Check torque values for all bolts
  26. Install grips/tape
  27. Install saddle
  28. Partially disassemble bike for shipping, remove front wheel, remove stem, remove seat/post and deflate tires
  29. Cover all critical areas with protective material
  30. Box bike for shipping

PRODUCT SPECIFICATIONS

Model

ROS 9 4-Star X01

Fork

Rock Shox Revelation RCT3 Solo Air 130mm 15mm Maxle Blue

Headset

ZS44 top EC44 bottom

Brakes

SRAM Elixir 9 Trail, 180/160mm G2 Rotors

Wheels

Stan's Notubes 3.30/ZTR Flow EX , 15mm Fnt, 12x142mm R

Tires

Schwalbe Nobby Nic Snakeskin TL 2.35

Handlebar

Niner Flat Top 780mm Red Graphic

Stem

Niner Alloy, Red Graphic

Seat Post

Niner Carbon, Red Graphic

Grips

Niner

Saddle

WTB Volt Race

Shifters

SRAM X01 11spd

Front Derailleur

N/A

Rear Derailleur

SRAM X01 11spd

Chain

SRAM PC1170 11spd

Cassette

SRAM XG- 1195 11spd 10-42t

Crankset

SRAM X01 32t

Bottom Bracket Design

SRAM PF30

GEOMETRY

Geometry

Size

Small

Medium

Large

X-Large

A

Top Tube Length (mm)

581

598

617

636

B

Seat Tube (mm)

394

431

471

534

C

Chain Stay (mm)

427

427

427

427

D

Horiz. Chain Stay (mm)

418/433*

418/433*

418/433*

418/433*

E

Front Center (mm)

683

701

722

743

F

Wheelbase (mm)

1105

1123

1144

1165

G

Bottom Bracket Drop (mm)

49

49

49

49

H

Head Tube Length (mm)

100

110

125

145

I

Head Tube Angle

67

67

67

67

J

Seat Tube Angle

73

73

73

73

K

Standover (mm)

712

733

787

839

L

Reach (mm)

386

400

415

428

M

Stack (mm)

632

641

655

674

* Depending on BioCentric II position

Geometry based on 140mm fork

Rider Height Bike Fit Chart

Height

Frame Size

5'3" - 5'9"

Small

5'8" - 6'

Medium

5'11" - 6'3"

Large

6'3" - 6'7"

X-Large

Please Note: These are only recommendations. Fit is also affected by inseam, torso length, reach, component selection and riding style.

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