Bike Comparison
    SIR 9 - 4-STAR SHIMANO XT2020 Niner
    Recommended
    MSRP
    $4,900
    Where to Buy
    —
    $1

    At

    Category
    		Trail
    Weight
    		27.7 lbs
    6.4
    Frame
    		Steel
    Fork
    		Fox Factory Float 34
    Wheels
    		Aluminum
    Wheel Size
    		27.5″ / 29″
    Brakes
    		Hydraulic Disc
    Motor
    Battery
    Groupset
    		XT, Race Face
    Drivetrain
    		1 × 12
    Suspension
    		Hardtail
    Front Travel
    		120mm
    Brand Site

    ninerbikes.com

    Summary
    		The Niner SIR 9 - 4-STAR SHIMANO XT is a 27.5″ / 29″ 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)

    28 mph

    SIR 9 - 4-STAR SHIMANO XT

    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 - 4-STAR SHIMANO XT2020 Niner
    Frame

    HAND WELDED REYNOLDS 853 STEEL; EXTERNAL CABLE ROUTING; INTEGRATED BOTTLE, BAG, RACK AND FENDER MOUNTS; 12X148 THRU AXLE

    BB Standard: PF30, 73mm, Press Fit

    Tire Clearance: 2.4"

    Fork

    FOX 34 SC FLOAT FACTORY EVOL FIT4, 3 POSITION W/ ADJ, KASHIMA COAT, 120MM, 110X15MM, 44MM OFFSET

    Shock

    N/A

    Bottom Bracket

    73mm PF30 BB Shell (Adapters Required For BSA Type BBs); compatible with Biocentric 30 BB

    Headset

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

    Stem

    RACE FACE TURBINE R 40MM, 35MM CLAMP

    Handlebar

    RACE FACE NEXT R 800MM WIDE, 20MM RISE, 35MM CLAMP

    Saddle

    NINER CUSTOM TR WITH CRN-TI RAILS, PRINTED NINER GRAPHIC

    Seatpost

    KS LEV SI (XS/S-100MM, M/L/XL-150MM)

    Grips

    NINER GRRRIPS L/O FLANGED

    Groupset
    Rear Derailleur

    SHIMANO XT M8100 SGS 12SP

    Front Derailleur

    N/A

    Crank

    RACEFACE NEXT R CARBON 12SP, 32T

    Shifters

    SHIMANO XT M8100 12SP I-SPEC EV

    Cassette

    SHIMANO XT M8100 12SP, 10-51T

    Chain

    SHIMANO XT M8100 W/ QUICKLINK

    Brakes

    SHIMANO XT M8100, METAL PAD W/ FIN

    Brake Levers

    SHIMANO XT M8100

    Wheels
    Rims

    Front: DT SWISS M1900 SPLINE 30, DT370 CENTERLOCK HUB 110X15MM FRONT, Rear: DT SWISS M1900 SPLINE 30, DT370 CENTERLOCK HUB 148X12MM REAR

    Tires

    Front: MAXXIS MINION DHF 3C/EXO/TR 2.5 WT FRONT, Rear: MAXXIS REKON 3C/EXO/TR 2.4 WT REAR

    Disc Rotors

    180/160 CENTERLINE ROTORS

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