Bike Comparison
    SIR 9 3-STAR2018 Niner
    Recommended
    MSRP
    $3,950
    Where to Buy
    —
    $1

    At

    Category
    		Trail
    6.2
    Frame
    		Steel
    Fork
    		Fox Factory Float 34
    Wheels
    Wheel Size
    		27.5″
    Brakes
    		Hydraulic Disc
    Motor
    Battery
    Groupset
    		GX Eagle, Truvativ Stylo
    Drivetrain
    		1 × 12
    Suspension
    		Hardtail
    Front Travel
    		120mm
    Brand Site

    ninerbikes.com

    Summary
    		The Niner SIR 9 3-STAR is a 27.5″ steel frame hardtail trail bike with high-end components.
    Similar Bikes
    Accessories
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    26 mph

    SIR 9 3-STAR

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    SIR 9 3-STAR2018 Niner
    Frame

    SIR 9 - SLATE BLUE/ORANGE

    BB Standard: PF30, Press Fit

    Tire Clearance: 2.4"

    Fork

    FOX 34 FLOAT FACTORY FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM

    Shock

    N/A

    Bottom Bracket

    SRAM%20PF30

    Headset

    NINER INTERNAL ZS SHIS DESCRIPTION ZS44/28.6|ZS56/40

    Stem

    RACE FACE AEFFECT R 50MM, 35MM CLAMP

    Handlebar

    RACE FACE AEFFECT R 780MM WIDE, 20MM RISE, 35MM CLAMP

    Saddle

    NINER CUSTOM TR WITH CR-MO RAILS, PRINTED NINER GRAPHIC

    Seatpost

    KS LEV SI

    Groupset
    Crank

    SRAM STYLO 7K EAGLE PF30 32T

    Shifters

    SRAM GX EAGLE 12SP

    Cassette

    SRAM EAGLE XG 1275, 10-50T

    Chain

    SRAM GX EAGLE 12SP

    Brakes

    SRAM GUIDE R

    Brake Levers

    SRAM GUIDE R

    Wheels
    Tires

    29" MAXXIS ARDENT DC/EXO/TR 2.4 or 27.5+ MAXXIS REKON+ DC/EXO/TR 2.8

    Riders Also Compared