Stumpjumper Expert 650b

If your idea of trail riding follows the philosophy of "go big or go home," you simply can't beat the agility and responsiveness that a 650b wheels provide. Knowing this, we built our Stumpjumper Expert 650b to be the ultimate all- rounder trail bike.

It features our FACT 9m carbon fibre for the bulk of the construction in order to provide an ultra-lightweight, strong, and stiff frame. The carbon moulding process also allowed us to revolutionise how you carry your trail essentials with the all-new SWAT™ Door found at the down tube. This compartment will fit a tube, a tool, and pump without rattling or compromising the structural integrity of the frame.

You'll also find an aggressive, nimble geometry to complement the 650b wheels that features ridiculously short chainstays, a roomy top tube, a low bottom bracket, and a slacked out front end. And for the build, we spec'd some of SRAM's best performing and durable 12-speed components, a FOX 34 Performance fork with 150mm of travel, and hand-built Roval Traverse 650b carbon wheels. It's a bike that will have you never looking back—unless it's to see your buddies eating your dust.

If your idea of trail riding follows the philosophy of "go big or go home," you simply can't beat the agility and responsiveness that a 650b wheels provide. Knowing this, we built our Stumpjumper Expert 650b to be the ultimate all- rounder trail bike.

It features our FACT 9m carbon fibre for the bulk of the construction in order to provide an ultra-lightweight, strong, and stiff frame. The carbon moulding process also allowed us to revolutionise how you carry your trail essentials with the all-new SWAT™ Door found at the down tube. This compartment will fit a tube, a tool, and pump without rattling or compromising the structural integrity of the frame.

You'll also find an aggressive, nimble geometry to complement the 650b wheels that features ridiculously short chainstays, a roomy top tube, a low bottom bracket, and a slacked out front end. And for the build, we spec'd some of SRAM's best performing and durable 12-speed components, a FOX 34 Performance fork with 150mm of travel, and hand-built Roval Traverse 650b carbon wheels. It's a bike that will have you never looking back—unless it's to see your buddies eating your dust.

    • FRAME

      FACT 9m carbon front chassis w/ Specialized M5 Aluminum rear end, 27.5 Trail Geometry, SWAT™ Door integration, PF30 BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel

    • FORK

      FOX 34 Performance 27.5, 44mm offset, 15x110mm thru-axle, 150mm of travel

    • REAR SHOCK

      RockShox Monarch RT3, Rx Trail Tune, AUTOSAG, rebound and 3-position compression adjust, 197x48mm

    • FRONT HUB

      Specialized, sealed cartridge bearings, 15x110mm spacing, 24h

    • REAR HUB

      Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h

    • SPOKES

      DT Swiss Industry, stainless, 3-cross, 2.0"

    • RIMS

      Roval Traverse Carbon 27.5, hookless carbon, 30mm inner width, 24/28h, tubeless ready, hand-built

    • INNER TUBES

      Standard, Presta valve

    • FRONT TYRE

      Butcher, GRID casing, Gripton compound, 2Bliss Ready, 27.5 x 2.6"

    • REAR TYRE

      Butcher, GRID casing, Gripton compound, 2Bliss Ready, 27.5 x 2.6"

    • CRANKSET

      Truvativ Descendant, aluminum, Boost™ 148, 170mm crankarm, 30mm spindle

    • CHAINRINGS

      32T

    • BOTTOM BRACKET

      PF30

    • SHIFT LEVERS

      SRAM GX Eagle, trigger, 12-speed

    • REAR DERAILLEUR

      SRAM GX Eagle, 12-speed

    • CASSETTE

      SRAM GX Eagle, 12-speed, 10-50t

    • CHAIN

      SRAM GX Eagle, 12-speed w/ PowerLock®

    • FRONT BRAKE

      SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200/180mm rotor

    • REAR BRAKE

      SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180/160mm rotor

    • HANDLEBARS

      Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp

    • GRIPS

      Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness

    • STEM

      Specialized Trail, 3D forged alloy, 4-bolt, 6-degree rise

    • SADDLE

      Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm

    • SEATPOST

      Command Post IRcc, 12-position micro-height adjustable, alien head design, bottom mount cable routing, remote SRL lever, 30.9mm, S: 100mm, M/L/XL: 125mm of travel

    • SEAT BINDER

      Alloy, 34.9mm

    • PEDALS

      Specialized Platform, Cr-Mo, 9/16" spindle

    Specifications subject to change without notice.

  • FACT 9m carbon fibre Trail Chassis with Stumpjumper FSR M5 alloy rear end blends stiffness with light weight to form the pinnacle of efficiency, while fully enclosed cable routing and an integrated SWAT™ Door create exceptional handling and zero-hassle storage.
  • The FOX 34 fork features 150mm of plush travel to take on big hits and bumpy terrain with supreme confidence and efficiency.
  • SRAM's 12-speed GX Eagle drivetrain, with a Truvativ Descendent crank, features an ultra-wide gear range that delivers climbing and descending efficiency in spades. On top of this, the one-by setup is notorious for being next to impossible to drop a chain with, plus it provides a significant weight savings in comparison to a standard two-by setup.
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Stumpjumper Expert 650b

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Geometry

  S M L XL
Stack 590mm 599mm 608mm 617mm
Reach 388mm 414mm 442mm 464mm
Head Tube Length 95mm 105mm 115mm 125mm
Head Tube Angle 67° 67° 67° 67°
BB Height, 27.5x2.3" 335mm 335mm 335mm 335mm
BB Height, 27.5x2.6" 340mm 340mm 340mm 340mm
BB Drop 18mm 18mm 18mm 18mm
Trail 104mm 104mm 104mm 104mm
Fork Length, Full 542mm 542mm 542mm 542mm
Fork Rake/Offset 46mm 46mm 46mm 46mm
Front Centre 677mm 706mm 738mm 764mm
Chainstay Length 420mm 420mm 420mm 420mm
Wheelbase 1096mm 1126mm 1158mm 1184mm
Top Tube Length, Horizontal 558mm 587mm 618mm 646mm
Bike Standover Height 742mm 748mm 762mm 764mm
Seat Tube Length 396mm 430mm 468mm 523mm
Seat Tube Angle 74° 74° 74° 74°

  • Stack 590mm
    Reach 388mm
    Head Tube Length 95mm
    Head Tube Angle 67°
    BB Height, 27.5x2.3" 335mm
    BB Height, 27.5x2.6" 340mm
    BB Drop 18mm
    Trail 104mm
    Fork Length, Full 542mm
    Fork Rake/Offset 46mm
    Front Centre 677mm
    Chainstay Length 420mm
    Wheelbase 1096mm
    Top Tube Length, Horizontal 558mm
    Bike Standover Height 742mm
    Seat Tube Length 396mm
    Seat Tube Angle 74°
    View S Geometry
  • Stack 599mm
    Reach 414mm
    Head Tube Length 105mm
    Head Tube Angle 67°
    BB Height, 27.5x2.3" 335mm
    BB Height, 27.5x2.6" 340mm
    BB Drop 18mm
    Trail 104mm
    Fork Length, Full 542mm
    Fork Rake/Offset 46mm
    Front Centre 706mm
    Chainstay Length 420mm
    Wheelbase 1126mm
    Top Tube Length, Horizontal 587mm
    Bike Standover Height 748mm
    Seat Tube Length 430mm
    Seat Tube Angle 74°
    View M Geometry
  • Stack 608mm
    Reach 442mm
    Head Tube Length 115mm
    Head Tube Angle 67°
    BB Height, 27.5x2.3" 335mm
    BB Height, 27.5x2.6" 340mm
    BB Drop 18mm
    Trail 104mm
    Fork Length, Full 542mm
    Fork Rake/Offset 46mm
    Front Centre 738mm
    Chainstay Length 420mm
    Wheelbase 1158mm
    Top Tube Length, Horizontal 618mm
    Bike Standover Height 762mm
    Seat Tube Length 468mm
    Seat Tube Angle 74°
    View L Geometry
  • Stack 617mm
    Reach 464mm
    Head Tube Length 125mm
    Head Tube Angle 67°
    BB Height, 27.5x2.3" 335mm
    BB Height, 27.5x2.6" 340mm
    BB Drop 18mm
    Trail 104mm
    Fork Length, Full 542mm
    Fork Rake/Offset 46mm
    Front Centre 764mm
    Chainstay Length 420mm
    Wheelbase 1184mm
    Top Tube Length, Horizontal 646mm
    Bike Standover Height 764mm
    Seat Tube Length 523mm
    Seat Tube Angle 74°
    View XL Geometry