Specialized Stumpjumper EVO Alloy Frameset (Satin Aluminum/Gunmetal) (S1)

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Specialized Stumpjumper Evo Alloy Frame Description:

First things first, the Stumpjumper EVO Alloy isn't a "normal" trail bike. It's built to get gnarly, plain and simple. Featuring the same all-new design as its carbon brethren—including an adjustable head tube angle, 150mm of performance tuned travel, the adaptability of S-Sizing, and SWAT™ Door integration—in a lightweight yet tough M5 Alloy chassis, you're going to be able to bomb down trails that you thought you couldn't touch without a full-blown DH rig.


  • Improved pedaling performance to create a more capable, agile, and lively ride experience
  • Increased anti-squat, so the suspension better resists pedal bob, and improved bump performance on square-edge hits
  • Long, low, slack, short offset fork, steeper seat tube angle – these are requirements for modern progressive riding
  • Fully adjustable with six different settings- You can adjust the BB height by 10mm, your head angle by two-degrees, and you can make these adjustments independent of each other
  • Full-party mullet-mode, the EVO lets you run a 27.5-inch rear wheel mated with a 29-inch front
  • Rider-First Engineered™ frames use a size-specific approach to ride characteristics that ensures benchmark handling and flawless performance, regardless of frame or rider size
  • Specialized introduced the SWAT™ door on the Stumpjumper in 2016, adding room IN the frame for those “oh sh**t” necessities like pumps and spare tubes


  • Frame: M5 Alloy Chassis & Rear-End w/ 29" Trail Geometry (SWAT) (Threaded BB) (12 x 148mm) (150mm Travel)
  • Rear Shock: FOX FLOAT X Performance w/ Rx Trail Tune (EVOL) (2-Position Compression Lever) (S1: 210 x 50mm, S2-S6: 210 x 55mm)
  • Seat Binder: Alloy (38.6mm)

This product was added to our catalog on December 30, 2021

Sizing Recommendations for Riders Who Fall Between Sizes:

  • Sizing down will provide a more maneuverable ride while sizing up will provide more stability
Rider Height (Feet)Rider Height (CM)
S14'11" - 5'3"150 - 160cm
S25'2" - 5'8"157 - 173cm
S35'5" - 5'11"165 - 180cm
S45'8" - 6'2"173 - 188cm
S55'10" - 6'4"178 - 193cm
S66'2" - 6'8"188 - 203cm

Note: All sizing recommendations are provided by the manufacturer and may differ for each rider.



BB Drop40mm35mm35mm35mm35mm35mm
BB Height335mm340mm340mm340mm340mm340mm
Bike Standover Height746mm749mm757mm760mm784mm792mm
Chainstay Length441mm441mm441mm441mm451mm451mm
Fork Length (Full)561mm571mm571mm571mm571mm571mm
Fork Rake/Offset44mm44mm44mm44mm44mm44mm
Front Center734mm756mm780mm809mm838mm873mm
Headtube Angle64.5°64.5°64.5°64.5°64.5°64.5°
Headtube Length95mm95mm105mm115mm125mm135mm
Max Seatpost Insertion190mm190mm210mm230mm250mm270mm
Min Seatpost Insertion100mm100mm100mm100mm100mm100mm
Seat Tube Angle78°77.6°77.2°76.9°77°77°
Seat Tube Length385mm385mm405mm425mm445mm465mm
Top-tube Length (horizontal)541mm564mm590mm623mm647mm679mm

Note: All measurements are provided by the manufacturer and may vary depending on how measurements are acquired.