Salsa Horsethief SX Eagle 29 Bike

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As if you need an excuse to start your Trails to Ride bucket list. The confidence-inspiring Salsa Horsethief SX Eagle 29 bike handles whatever the trail throws our way.

  • Features

    • SRAM SX Eagle drivetrain provides a massive 12-speed gear range for the ups and downs of trail life
    • Modern trail bike fit uses a short stem, wide bar and longer effective top tube to get you into the same familiar position as on your older trail bike
    • 140mm front and 120mm rear suspension match up well with the spec'd 29er wheel setup—though you could always choose to run 27.5 wheels instead (27.5 in. wheels not included)
    • RockShox® Recon RL 140mm fork offers proven performance with a Motion Control™ damper
    • 120mm travel Split Pivot® rear suspension is controlled by a RockShox Deluxe RT shock, which is super supple, reactive and easily tunable
    • Split Pivot features a pivot in line with the rear axle that isolates pedaling and braking forces for more traction and control when climbing, descending or cornering
    • Metric shock standard requires lower air pressure, resulting in increased stiffness in rear triangle/rear suspension frame members and the ability to fine-tune ride quality
    • Flip Chip technology integrated into the shock link mount allows quick adjustments to bottom bracket height and head tube angle with just a hex key or multi-tool
    • In high mode, Flip Chip sets head angle 0.5% steeper and bottom bracket 4mm higher for quicker turns and more pedal clearance, ideal for technical terrain and 27.5 wheels
    • In low mode, Flip Chip sets head angle 0.5% slacker and bottom bracket 4mm lower for stability at speed and lower center of gravity, ideal for flow trails and 29er wheels
    • Super Boost-157 standard 157 x 12mm rear spacing paired with a standard-width bottom bracket results in 432mm chainstays and max tire width of 29 x 2.6 in. or 27.5 x 3 in.
    • Fits 2 full-size water bottles
    • Top tube accessory mounts; full-length internal housing cable routing; stealth dropper post routing compatible
    • Pedals not included
    • Specs and images are subject to change


    Free Adjustment Period:
    New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.
    View the Salsa Horsethief Product Line View all Salsa Full-Suspension Mountain Bikes
  • Technical Specs

    Best Use

    Mountain Biking

    Mountain Bike Style


    Bike Frame Material



    6066-T6 aluminum tubeset

    Bike Suspension

    Full Suspension


    RockShox Recon RL 140mm, 51mm offset

    Fork Travel

    140 millimeters

    Rear Shock

    RockShox Deluxe RT


    Truvativ Descendent 7k 32t


    SRAM SX Eagle

    Rear Derailleur

    SRAM SX Eagle

    Rear Cogs

    Sram PG1210 12-speed, 11-50t

    Number of Gears


    Brake Type

    Hydraulic Disc Brake


    Shimano MT401 with 180 mm rotors


    WTB ST i29 TCO 2.0

    Front Hub

    WTB Sera 110x15mm thru axle

    Rear Hub

    WTB Serra 157x12mm thru axle

    Wheel Size

    29 inches


    Maxxis Minion DHF 29x2.5 in. Front and DHR II 29x2.4 in. Rear, 60 tpi/EXO/Tubeless Ready

    Tire Width

    2.4 inches

    2.5 inches

    Handlebar Shape

    Flat Bar


    Salsa Guide Trail

    Seat Post

    TranzX Dropper JD-YSP12JL


    WTB Volt Sport


    Not included


    FSA Orbit IS-2


    SRAM SX Eagle

    Dropper Post






  • Size Chart

    S M L XL
    Height Range 5'5''-5'8'' 5'8''-5'11'' 5'11''-6'2'' 6'2''-UP
    Reach 412/415 431/434 450/453 469/472
    Stack 615/613 624/622 634/632 643/641
    Effective Top Tube 596/595 618/617 639/638 661/660
    Seat Tube Center-Top 406 444 483 520
    Standover Height 757/760 757/760 757/760 757/760
    Head Tube Length 103 113 123 133
    Head Tube Angle (degrees) 66.8/67 66.8/67 66.8/67 66.8/67
    Seat Tube Angle (degrees) 73.4/73.6 73.4/73.6 73.4/73.6 73.4/73.6
    Wheelbase 1,139 1,162 1,185 1,208
    Chainstay 432/431 432/431 432/431 432/431
    Fork Offset 42 42 42 42

    Sizing Notes

    Measurements are stated in millimeters unless otherwise indicated.

    How we measure bikes

    1. Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
    2. Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
    3. Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
    4. Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
    5. Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
    6. Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
    7. Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
    8. Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
    9. Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
    10. Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
    11. Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
    12. Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.
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