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Niner Sir 9 3-STAR XT Bike 2018

Item #: BI186A04
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Niner Sir 9 3-STAR XT Bike 2018

Niner Sir 9 3-star xt bike 2018

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.

Niner pairs the SIR 9 with Shimano’s smooth and precise XT 11-speed drivetrain that provides a huge gear range to let you tackle steep climbs and speed through the straights and downhills. XT brakes deliver predictable power to get you stopped on a dime in any condition. Stan’s NoTubes wheels wrapped in Maxxis Ardent tires roll fast and smooth with confidence inspiring grip that will have you railing corners like a pro. Handling the suspension duties, is the Rock Shox Reba RL fork with Boost spacing, 120mm of travel, and external rebound and compression adjustment. Topping off the SIR 9 is a cockpit by Race Face, and KS Lev dropper post with internal routing.

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

REVIEWS

Bikepacking.com - ”Niner has just released the latest drool-worthy steel hardtail with a bikepacking predisposition. The all new Niner Sir 9 was reengineered from the ground up with a mount-laden Reynolds 853 steel frame that fits 27.5+ or 29er wheels and tires…” - Logan Watts

Singletrack - ”It’s still steel and 29in, but the new SIR 9 from Niner has a whole load more versatility built into it.” - Wil Barrett

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
  • SHIMANO XT 11-SPEED DRIVETRAIN DELIVERS PRECISION SHIFTS AND MASSIVE GEAR RANGE
  • SHIMANO XT M8000 BRAKES RELIABLE BRAKING IN ANY CONDITION
  • KS LEV DROPPER POST DROP THE SADDLE TO TACKLE TECHNICAL TERRAIN
SPECIFICATIONS
Frame SIR 9 - REYNOLDS 853 STEEL, 12 X 148MM BOOST DROPOUTS, SLATE BLUE/ORANGE
Fork ROCKSHOX REBA RL SOLO AIR, 120MM, 110X15MM
Rear Shock TIRE PRESSURE AND YOUR LEGS
Headset NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40
Shifters SHIMANO XT M8000 11SP I-SPEC II
Front Derailleur THEY STILL MAKE THOSE?
Rear Derailleur SHIMANO XT M8000 GS 11SP SHADOW PLUS
Crankset RACE FACE TURBINE 32T
Bottom Bracket RACE FACE PF30
Pedals -
Chain SHIMANO XT HG-701 11SP
Cassette SHIMANO XT HG-701 11SP
Brakes SHIMANO XT M8000 ICE TECH PADS, 180/160MM RT86 ICE TECH ROTORS
Wheelset STAN'S NOTUBES NEO/ZTR ARCH MK3, 110X15MM FRONT, STAN'S NOTUBES NEO/ZTR ARCH MK3,148 X 12MM REAR
Tires MAXXIS ARDENT DC/EXO/TR 29 x 2.4 FRONT, MAXXIS ARDENT DC/EXO/TR 29 x 2.25 REAR
Handlebar RACE FACE AEFFECT 760MM WIDE, 20MM RISE, 35MM CLAMP
Stem RACE FACE AEFFECT 35MM CLAMP
Grips NINER GRRRIPS L/O NYLON
Seatpost KS LEV SI INTERNAL, 30.9
Seatclamp NINER ALLOY
Saddle NINER CUSTOM WITH CR-MO RAILS, NINER GRAPHIC
Intended Use Trail
Weight kg
lbs

Note: Components are subject to change without notice.

”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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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.