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When the mountain throws every variable obstacle in front of you, the Blackthorn Carbon SLX mountain bike charges head-on with a Split Pivot+ carbon frame and Split Pivot suspension system in control.

  • Features

    • Stiff carbon fiber material damps vibration and offers excellent toughness and weight savings compared to other materials
    • Split Pivot+ frame design allows you to swap the link set, shock and fork to convert your Blackthorn frame to accommodate more suspension travel (165 mm rear and 180 mm front)
    • Split Pivot rear suspension system with concentric rear axle pivot isolates pedaling and braking forces from each other, for independent tuning, traction and control
    • Shimano SLX drivetrain and 4-piston brakes keep you in control when you push the limit
    • Progressive suspension offers plenty of bottom-out performance at the end of the stroke, promoting more confidence and control on bigger hits
    • Flip Chip 2.0 technology integrated into the shock link mount allows easy, quick adjustments to bottom bracket height and head tube angle with just a hex key or multi-tool
    • EPS Carbon main triangle with carbon seatstays, aluminum chainstays and an integrated shock mount allows for greater control
    • Three-Pack downtube mounts accommodate a large water bottle on the lower pair and a pump on the upper pair (accessories not included)
    • Top tube mounts accommodate K-Edge Top Tube Mount for bike computers or the Salsa EXP Series Direct-Mount Top Tube Bag
    • Salsa EXP Series Tube Strap and an integrated frame mount attach to top tube for a secure connection that won't scuff the paint
    • Accommodates standard 26 fl. oz. water bottle within the front triangle
    • Internal tubes guide the cable housing through the frame, simplifying setup and maintenance and creating a clean bike profile
    • TranzX YSI05 dropper post is height-adjustable by 30mm—total travel varies by frame size—and includes a Shimano remote lever
    • Stealth Dropper post routing runs internally and is compatible with 30.9mm dropper posts
    • Molded frame protection guards downtube, seat tube, chainstay, and seatstay from impacts and abrasions on the frame
    • Blackthorn is spec'd as a 29er, but can also run 27.5 x 2.8–3.0 in. wheels and tires
    • 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 all Salsa Full-Suspension Mountain Bikes
  • Technical Specs

    Best Use

    Mountain Biking

    Mountain Bike Style


    Bike Frame Material



    Blackthorn carbon

    Bike Suspension

    Full Suspension


    RockShox Lyrik Select+, 160mm, 42mm offset

    Fork Travel

    160 millimeters

    Rear Shock

    RockShox Super Deluxe Select+


    Shimano SLX, 32T


    Shimano SLX

    Rear Derailleur

    Shimano SLX

    Rear Cogs

    Shimano Deore, 10-51T, 12-speed

    Number of Gears

    12 gear(s)

    Brake Type

    Hydraulic Disc Brake


    Shimano SLX 4-piston (203mm front, 180mm rear rotors)

    Brake Levers

    Shimano SLX


    DT Swiss EX 532 29 in. tubeless-ready

    Front Hub

    Shimano SLX 15 x 110mm

    Rear Hub

    Shimano SLX 12 x 157mm

    Wheel Size

    29 inches


    Maxxis Assegai 29 x 2.5 in. front, Maxxis Dissector 29 x 2.4 in. rear, 120 TPI, 3CT, EXO+, Tubeless-Ready

    Tire Width

    2.5 inches

    2.4 inches

    Handlebar Shape

    Riser Bar


    RaceFace Aeffect R 35.0


    Salsa Guide 35.0


    WTB Volt 250 Comp


    Not included


    Cane Creek 40


    Shimano Deore M6100

    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 448/451 469/472 490/493 510/514
    Stack 611/609 615/613 624/622 633/630
    Effective Top Tube 594/593 616/615 640/639 663/662
    Seat Tube Center-Top 405 430 455 480
    Standover Height 726/728 729/732 730/733 730/733
    Head Tube Length 95 100 110 120
    Head Tube Angle (degrees) 64.6/64.9 64.6/64.9 64.6/64.9 64.6/64.9
    Seat Tube Angle (degrees) 76.5/76.8 76.5/76.8 76.5/76.8 76.5/76.8
    Bottom Bracket Height 26/22 26/22 26/21 26/21
    Wheelbase 1204/1204 1228/1227 1253/1252 1278/1278
    Chainstay 432/431 432/431 432/431 432/431
    Fork Offset 43 43 43 43

    Sizing Notes

    Measurements are stated in millimeters unless otherwise indicated.

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