Specialized Stumpjumper ST 27.5, 2019
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Specialized Stumpjumper ST 27.5, 2019

Product Code 94718-7002
Other products by Specialized

All of you die-hard alloy fans can rejoice. Yes, the new Stumpjumper ST comes in an alloy version, and it may be the most radically designed alloy bike ever made. And with new tube shapes, an asymmetrical design, and the snappy handling that the 27.5 platform is known for, the Stumpjumper ST Alloy 27.5 is sure to exceed your expectations of how a trail bike should ride.

Our design goal for the new Stumpjumper was simple—build the ultimate trail bike, one that feels telepathic. And it turns out that this feeling all comes down to stiffness. Think of it this way: when the frame's telling your hands one thing and your feet another, your brain gets confused with the imbalance and the bike feels unstable. In order to fix this, we had to get to work on dialing-in the materials and shapes.

We continued down the suspension path with a custom Rx Trail Tune on both the fork and rear shock. Suspension performance is highly dependent on frame, wheel, and rider size, so we use our Rx Tune to get each bike to land in the middle of the adjustment spectrum, and this gives you the biggest possible range to fine-tune your ride. Another focal point of the tune was matching the suspension characteristics between wheel sizes—we developed a specific Rx Tune for each platform. So, no matter what wheel size you prefer, you'll get perfectly linear suspension.

Steps were also taken to make this bike easy to live with. Threaded bottom brackets make a triumphant return, and we made room for up to a 3.0" tire. You're also free to run whatever aftermarket rear shock you want, since we're using standard metric shocks. And customization is furthered with a Flip Chip that lets you to dial-in your Stumpy to your riding style. Switch it from High to Low and it drops your bottom bracket 6mm and slackens the head tube by half-a-degree. Little details also jump out to surprise you, like a newly designed ribbed chainstay protector that makes chain slap a thing of the past and nearly silences the drivetrain.

The build here is no-nonsense with a focus on dependable, high-performing parts, like Shimano SLX front and rear derailleurs, Tektro Gemini disc brakes, a RockShox Recon RL fork with 130mm of travel, a custom X-Fusion 02 Pro RL rear shock with 130mm of travel, and wide alloy wheels.


  • The all-new alloy Stumpjumper ST frame features an M5 alloy front- and rear-end, an asymmetrical design, and our Trail Geometry, so it's both capable and comfortable.
  • The X-Fusion Metric rear shock features rebound adjustment, lockout, and our coveted Rx Trail Tune to ensure you're getting the most out of your Stumpjumper ST.
  • A RockShox Recon RL provides 130mm of travel up front, and it lets you adjust both rebound and lockout.


      FRAME M5 alloy chassis and rear end, asymmetrical design, 27.5 Trail Geometry, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel
      FORK RockShox Recon RL, Solo Air, 51mm offset, rebound adjust, lockout, 15x110mm Boost™ Maxle® Lite thru-axle, 130mm of travel
      REAR SHOCK X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout 190x42.5mm
      FRONT HUB Specialized, sealed cartridge bearings, 15x110mm spacing, 32h
      REAR HUB Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h
      SPOKES Stainless, 14g
      RIMS Double-wall, 27mm internal width
      INNER TUBES Standard, Presta valve
      FRONT TYRE Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 27.5x2.3"
      REAR TYRE Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5x2.3"
      CRANKSET SRAM NX, Boost™, direct-mount XSYNC, Powerspline
      BOTTOM BRACKET SRAM Power Spline
      SHIFT LEVERS Shimano SLX, 11-speed
      REAR DERAILLEUR Shimano SLX, Shadow Plus, GS cage, 11-speed
      CASSETTE Sunrace, ED Black, 11-speed, 11-46t
      CHAIN KMC X11, 11-speed w/ Missing Link™
      FRONT BRAKE Tektro Gemini Comp, hydraulic disc, resin pad, 200mm rotor
      REAR BRAKE Tektro Gemini Comp, hydraulic disc, resin pad, 180mm rotor
      HANDLEBARS Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
      GRIPS Specialized Sip Grip, half-waffle
      STEM Specialized Trail, 3D forged alloy, 4-bolt, 7-degree rise
      SADDLE Body Geometry Henge Sport, steel rails, 143mm
      SEATPOST Alloy, two-bolt clamp, 34.9mm
      SEAT BINDER Alloy, 38.6mm
      PEDALS Specialized Dirt



      S M L XL
      BB Drop 28mm 28mm 28mm 28mm
      BB Height 325mm 325mm 325mm 325mm
      Bike Standover Height 744mm 749mm 761mm 762mm
      Chainstay Length 432mm 432mm 432mm 432mm
      Fork Length, Full 522mm 522mm 522mm 522mm
      Fork Rake/Offset 46mm 46mm 46mm 46mm
      Front Center 718mm 739mm 772mm 803mm
      Head Tube Angle 66.5° 66.5° 66.5° 66.5°
      Head Tube Length 105mm 110mm 140mm 155mm
      Reach 425mm 444mm 465mm 490mm
      Seat Tube Angle 76.3° 76° 75.6° 75.2°
      Seat Tube Length 380mm 410mm 455mm 505mm
      Stack 586mm 590mm 618mm 631mm
      Top Tube Length, Horizontal 568mm 591mm 624mm 657mm
      Trail 103mm 103mm 103mm 103mm
      Wheelbase 1149mm 1170mm 1203mm 1234mm

      NOTE: Price applies to Online sales only, pricing may differ in our Retail store.
      • S - Satin Gloss Black/Nice Blue  $3,000.00 | In-store $3,000.00
      • M - Satin Gloss Black/Nice Blue  $3,000.00 | In-store $3,000.00
      • L - Satin Gloss Black/Nice Blue  $3,000.00 | In-store $3,000.00
      • XL - Satin Gloss Black/Nice Blue  $3,000.00 | In-store $3,000.00

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