Image of Niner SIR 9 3-Star SRAM GX Eagle
2021

Niner SIR 9 3-Star SRAM GX Eagle

Niner SIR 9 2021

3750

Cross Country

Colour / Cement Grey/Black

Size / SM, MD, LG, XL

Manufacturer Website

At a glance

The 2021 Niner SIR 9 3-Star SRAM GX Eagle is an Cross Country Steel mountain bike. It sports 29" wheels, is priced at $3,750 USD, comes in a range of sizes, including SM, MD, LG, XL, has Fox suspension and a SRAM drivetrain. The bike is part of Niner's SIR 9 range of mountain bikes.

– External cable routing, with internal dropper post routing, – Includes Stan’s NoTubes sealant, – Singlespeed compatible with BioCentric 30 bottom bracket system, – Compatible with 27.5+ wheels/tires, – Rack and fender mounts

Where To Buy

Reviews

Specifications

Frameset
  • Frame
    Hand-welded air-hardened heat-treated Reynolds 853 steel
  • Fork
    FOX FLOAT 34 Step-Cast (SC) Factory, EVOL, FIT4 damper, 3-position with adjust, Kashima coating, 44mm offset, 120mm
Wheels
  • Hubs
    DT Swiss M 1900 Spline 30 wheelset, 110x15mm Boost front, 148x12mm Boost rear with XD driver
  • Wheels
    DT Swiss M 1900 Spline 30 wheelset
  • Wheel Size
    29"
  • Spokes
    DT Swiss M 1900 Spline 30 wheelset
  • Tires
    Schwalbe Nobby Nic, Evo, Super Trail, TLE, Addix Speedgrip, 29" x 2.6" (front), 2.35" (rear)
Drivetrain
  • Chain
    427mm, None, Truvativ Descendant 7K Eagle, 32 tooth, SRAM GX Eagle, 12-speed
  • Crank
    Truvativ Descendant 7K Eagle DUB
  • Bottom Bracket
    52mm drop, SRAM DUB, PF30 PressFit
  • Rear Derailleur
    SRAM GX Eagle, 12-speed
  • Shifters
    SRAM GX Eagle, 12-speed
Components
  • Brakeset
    SRAM G2 R, 4-piston, SRAM CenterLine CENTER LOCK rotors (180mm front, 160mm rear), SRAM G2 R
  • Handlebar
    Race Face Aeffect R, 780mm width, 20mm rise, 35mm clamp diameter
  • Saddle
    Niner Custom TR, CrMo rails
  • Seatpost
    KS LEV SI dropper, 30.9mm, Single bolt, 34.9mm, 30.9mm, Single bolt, 34.9mm
    Drop:
    100mm (SM)
    150mm (MD/LG/XL)
  • Stem
    Race Face Aeffect R, 40mm length, 35mm bar clamp
  • Grips
    Niner Grrrips, lock-on, soft compound
  • Headset
    Niner Internal, ZS44/28.6 upper, ZS56/40 lower

FAQ

Q: How much is a 2021 Niner SIR 9 3-Star SRAM GX Eagle?

A 2021 Niner SIR 9 3-Star SRAM GX Eagle is typically priced around $3,750 USD when new. Be sure to shop around for the best price, and also look to the used market for a great deal.

Q: Where to buy a 2021 Niner SIR 9 3-Star SRAM GX Eagle?

The 2021 Niner SIR 9 3-Star SRAM GX Eagle may be purchased directly from Niner.

Q: What size wheels does the 2021 Niner SIR 9 3-Star SRAM GX Eagle have?

The 2021 Niner SIR 9 3-Star SRAM GX Eagle has 29" wheels.

Q: What size 2021 Niner SIR 9 3-Star SRAM GX Eagle should I get?

The 2021 Niner SIR 9 3-Star SRAM GX Eagle comes in sizes SM, MD, LG, XL. After measuring your height, use the size chart below to find the typical Niner SIR 9 3-Star SRAM GX Eagle size for your height. Remember that these sizes are a general guide and bike sizes can vary between riders and bikes. The best way to find your size is to go for a test ride.

Rider Height (cm) Rider Height (in) Frame Size
148cm - 158cm 4'10" - 5'2" XS
158cm - 168cm 5'2" - 5'6" S
168cm - 178cm 5'6" - 5' 10" M
178cm - 185cm 5'10" - 6'1" L
185cm - 193cm 6'1" - 6'4" XL
193cm - 198cm 6'4" - 6'6" XXL

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