Salsa Cassidy Carbon SLX Mountain Bike

Color: Mustard
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With a suspension dialed for maximum traction and pedaling efficiency, the Salsa Cassidy Carbon SLX mountain bike is for riders who relish rowdy, rutted-out descents and powerful climbs.


  • 6061-T6 aluminum chainstays provide durability
  • Split Pivot + suspension design remains fully active under braking while supportive through its 165 mm travel for efficient pedaling and maximum traction
  • 180 mm suspension fork
  • 63.8° head tube angle with a short-offset fork inspires confidence and handling prowess up and down the mountain
  • 75.7° seat tube angle; seat tube length optimized for longer dropper posts
  • Rear Flip Chip adjusts the head tube angle and bottom bracket height for varying terrain, wheel sizes and personal preference
  • Super Boost 12 x 157 mm rear hub spacing allows for a shorter chainstay length (431–432 mm), more tire clearance, stiffer wheels and more chainring options
  • Clearance fits 29 in. wheels with up to 2.6 in. tires or 27.5 in. wheels with up to 3 in. tires (equipped with 29 in. wheels and tires; 27.5 in. wheels and tires not included)
  • Integrated strap location on the frame lets you secure a tube or tool kit (strap and accessories not included)
  • Pedals not included
  • Specs and images are subject to change


This bike comes with Coast to Coast Support, which includes:
  • 1 year of free adjustments (see more below)
  • In-store bike assembly
  • Pickup in store or curbside
  • Bike experts available at 170+ bike shops
REI Co-op Members get more:
  • 20% off shop services
  • Free tubes with purchase of flat tire repair (Co-op Cycles brand tubes only; tube must be installed at time of purchase)
More about our free adjustments:
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 Cassidy Product LineView all Salsa Full-Suspension Mountain Bikes

Technical Specs

Best Use

Mountain Biking

Mountain Bike Style



Cassidy carbon V1

Bike Suspension

Full Suspension


RockShox ZEB Select+ RC 180 mm, 44 mm offset

Fork Travel

180 millimeters

Rear Shock

RockShox Super Deluxe Select+


Shimano SLX M7130, 30T

Bottom Bracket

Shimano SM-BB52 73 mm BSA, threaded


Shimano SLX M7100

Rear Derailleur

Shimano SLX M8100 SGS

Rear Cogs

Shimano Deore M6100, 10-51T, 12-speed

Number of Gears

12 gear(s)

Brake Type

Hydraulic Disc Brake


4-piston Shimano Deore M6120

Brake Levers

Shimano Deore M6120


WTB KOM Trail i30

Front Hub

Shimano SLX M7110 15 x 110 mm hub

Rear Hub

Shimano SLX M7130 12 x 157 mm hub

Wheel Size

29 inches


Front: Maxxis Assegai 29 x 2.5 in.; rear: Maxxis Dissector 29 x 2.4 in.; Maxx Grip, DD and tubeless ready

Tire Width

2.5 inches

2.4 inches

Handlebar Shape

Flat Bar


Race Face Aeffect R 35


Salsa Guide Trail 50 mm

Seat Post

TranzX YSI05, Shimano MT500 lever, 30 mm travel adjust


WTB Volt 250 Steel, 250 x 135 mm


Not included


Cane Creek 40 Series, ZS44/ZS56


Shimano Deore M6100

Dropper Post






Size Chart

Height Range165cm–173cm173cm–180cm180cm–188cm188cm–UP
Reach439 / 443 460 / 463481 / 484502 / 505
Stack617 / 615622 / 619631 / 628640 / 637
Effective Top Tube596 / 595619 / 618 642 / 641665 / 664
Seat Tube Center-Top405430455480
Standover Height640 / 637740 / 743741 / 744741 / 744
Head Tube Length95100110120
Head Tube Angle (degrees)63.8 / 64.163.8 / 64.163.8 / 64.163.8 / 64.1
Seat Tube Angle (degrees)75.7 / 76.075.7 / 76.075.7 / 76.075.7 / 76.0
Bottom Bracket Height19 / 1519 / 1519 / 1519 / 15
Wheelbase1213 / 12121236 / 12351262 / 12611287 / 1286
Chainstay432 / 431432 / 431432 / 431432 / 431
Fork Offset43434343

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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