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Stumpjumper Expert

Stumpjumper Expert

Part No. 93321-3101

Color
Size
Size Chart

With the all-new Stumpjumper Expert, we've bottled up that "new bike day" feeling and put it into a radical new trail bike so agile, so lively, so in-tune with the trail, that it feels like an extension of your body. Levitate up the climbs. Decimate the descents. The Stumpjumper Expert is going to make you rethink how a trail bike should ride.

  • THE TRAIL BENCHMARK — When we set out to design the all-new Stumpjumper, we pursued some hefty goals. It had to excel on any kind of trail, for every style of rider. To achieve that, we went after serious weight reduction without sacrificing durability, a stiff, responsive chassis that still rides light and lively, geometry that improves everyone’s riding, and the best suspension kinematics we know how to design. Turns out, you can have your cake and eat it too with the new Stumpjumper.
  • THE SWEETEST 130MM OF TRAVEL YOU’LL EVER RIDE — We massaged the kinematics of the Stumpjumper suspension to bring out the very best all-round performance possible in a 130mm package. Countless hours of suspension lab development and field testing created a refined mid-travel ripper that eats big terrain like a gravity fed beast, handles like a dream everywhere, and climbs like it has a motor.
  • PROGRESSIVE GEOMETRY — The S-Sizing geometry of the new Stumpjumper hits the progressive sweet spot. It’s long, low and slack, with a short offset fork and a steeper seat tube angle. These numbers combine to make your ride more stable, more carvealicious, more comfortable climbing, more better everywhere. With FlipChip adjustability you’re able to further fine-tune your fit, ensuring that your new Stumpjumper performs flawlessly on whatever terrain you choose.
  • RIDER-FIRST ENGINEERED™ — 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. Whether you’re a jump-happy grom riding an S1, or a DH-fiend giant in need of the lengthy S6, you’ll experience the same ride traits – rail-sharp cornering and balanced front and rear stiffness – at the lightest-possible weight, And by light, we mean real light: 2,250 grams (S-Works, S-3 size, with rear shock).
  • SWAT™ — We introduced the SWAT™ door on the Stumpjumper in 2016, adding room IN your frame for those “oh sh**t” necessities like pumps and spare tubes, and immediately rendering jersey pockets redundant. With the new Stumpjumper, we have increased the volume and added a SWAT™ Bladder, giving you an extra 22oz of water storage – the same size as a small water bottle – hidden in your downtube.

With the all-new Stumpjumper Expert, we"ve bottled up that "new bike day" feeling and put it into a radically new trail bike that"s so agile, lively, and in-tune with the trail, it feels like an extension of your body. Hard climbs? No problem. Rowdy descents, easy. The Stumpjumper Expert is going to make you rethink how a trail bike should ride.

  • THE TRAIL BENCHMARK When we set out to design the all-new Stumpjumper, we pursued some hefty goals. We went after the lightest-possible weight that sacrifices nothing to durability, a stiff chassis that corners on rails, and a geometry that everyone can enjoy, all with the best suspension kinematics we know how to design. Turns out, you can have your cake and eat it too with the new Stumpjumper.
  • 130MM OF TRAIL-TAMING TRAVEL All the travel in the world is useless without the proper kinematics, which is why we kept it at the forefront of the new Stumpjumper design. With the learnings from the suspension design on the Enduro, and over 1,000 hours of field and suspension lab development, we’ve greatly improved the pedaling performance, all while creating the capable, efficient, lively feelings that you long for. We increased anti-squat, so the suspension better-resists pedal bob and then, we further-improved bump performance on square-edge hits. Bottom line? The all-new Stumpjumper descends with complete control yet climbs with ease.
  • RIDER-FIRST ENGINEERED™ Rider-First Engineered™ frames use a size-specific approach to ride characteristics that ensures every frame performs flawlessly. So, whether you’re a Grom riding an S1, or in need of the lengthy S6, you’ll experience the same ride characteristics—on-rail cornering and balanced front and rear stiffness, all at the lightest-possible weight: 2,250 grams (S-Works, Medium, with rear shock).
  • PROGRESSIVE GEOMETRY The S-Sizing geometry of the new Stumpjumper hits the progressive sweet spot. Long, low, slack, a short offset fork, a steeper seat tube angle—they’re all the talk of the town because they make your ride better. With Flip Chip adjustability you’re able to further fine-tune your fit, ensuring that your new Stumpjumper performs flawlessly on whatever terrain you choose.
  • SWAT™ When we introduced the SWAT™ door on the Stumpjumper in 2016, we increased pocket space, and added room for those “oh s**t” pumps and flat accessories. With the new Stumpjumper, we’ve kept those same design hallmarks, but have increased the volume and added a SWAT™ Bladder, that gives you an extra 22oz of water hidden in your downtube. Yes, it’s the same size as a small bottle.

Technical Specifications

CHAINRINGS Steel, 30T
CHAIN SRAM GX Eagle, 12-speed
REAR DERAILLEUR Sram X01 Eagle, 12-speed
CRANKSET SRAM Descendant 7K, DUB, S1
SHIFT LEVERS SRAM X01, trigger, 12-speed
BOTTOM BRACKET SRAM DUB, BSA 73mm, Threaded
CASSETTE Sram XG-1275, 12-speed, 10-52t
HANDLEBARS Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 30mm rise, 780mm, 35mm clamp
SADDLE Bridge Comp, Hollow Cr-mo rails, 155/143mm
STEM Alloy Trail Stem, 35mm bar bore
SEATPOST X-Fusion Manic, infinite adjustable, remote SRL LE lever, 34.9 (S1
GRIPS Deity, Knuckleduster, Black
FRONT HUB Roval, sealed cartridge bearings, 15x110mm spacing, 28h
RIMS Roval Traverse 29 Alloy, 30mm inner width, hand-built, 2Bliss Ready
REAR HUB Roval DT Swiss 360, 3-pawl design, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h
REAR TIRE Purgatory, GRID Casing, GRIPTON® compound, 29x2.3"
INNER TUBES Standard, Presta valve
FRONT TIRE Butcher, GRID casing, GRIPTON® compound, 29x2.3"
SPOKES DT Swiss Competition Race
REAR SHOCK FOX FLOAT DPS Performance Elite, Rx Trail Tune, EVOL Air sleeve, 3-position adjustment w/ Open Mode Adjustment, 190x45mm
FORK FOX FLOAT 34 Performance Elite, GRIP2 damper, 15x110mm, 44mm offset, 140mm of travel
FRAME FACT 11m carbon chassis and rear-end, asymmetrical design, 29 Trail Geometry, SWAT™ Door integration, flip chip Head Tube/Bottom Bracket adjustment, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel
SEAT BINDER Alloy, 38.6
SWAT Increased-volume SWAT™ Door integration with 22oz SWAT™ Bladder
REAR BRAKE SRAM G2 RSC, 4-piston caliper, hydraulic disc, 180mm
FRONT BRAKE SRAM G2 RSC, 4-piston caliper, hydraulic disc, 200mm
PEDALS

Technical Specifications

CHAINRINGS Steel, 30T
CHAIN SRAM GX Eagle, 12-speed
REAR DERAILLEUR Sram X01 Eagle, 12-speed
CRANKSET SRAM Descendant 7K, DUB, S1
SHIFT LEVERS SRAM X01, trigger, 12-speed
BOTTOM BRACKET SRAM DUB, BSA 73mm, Threaded
CASSETTE Sram XG-1275, 12-speed, 10-52t
HANDLEBARS Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 30mm rise, 780mm, 35mm clamp
SADDLE Bridge Comp, Hollow Cr-mo rails, 155/143mm
STEM Alloy Trail Stem, 35mm bar bore
SEATPOST X-Fusion Manic, infinite adjustable, remote SRL LE lever, 34.9 (S1
GRIPS Deity, Knuckleduster, Black
FRONT HUB Roval, sealed cartridge bearings, 15x110mm spacing, 28h
RIMS Roval Traverse 29 Alloy, 30mm inner width, hand-built, 2Bliss Ready
REAR HUB Roval DT Swiss 360, 3-pawl design, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h
REAR TIRE Purgatory, GRID Casing, GRIPTON® compound, 29x2.3"
INNER TUBES Standard, Presta valve
FRONT TIRE Butcher, GRID casing, GRIPTON® compound, 29x2.3"
SPOKES DT Swiss Competition Race
REAR SHOCK FOX FLOAT DPS Performance Elite, Rx Trail Tune, EVOL Air sleeve, 3-position adjustment w/ Open Mode Adjustment, 190x45mm
FORK FOX FLOAT 34 Performance Elite, GRIP2 damper, 15x110mm, 44mm offset, 140mm of travel
FRAME FACT 11m carbon chassis and rear-end, asymmetrical design, 29 Trail Geometry, SWAT™ Door integration, flip chip Head Tube/Bottom Bracket adjustment, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel
SEAT BINDER Alloy, 38.6
SWAT Increased-volume SWAT™ Door integration with 22oz SWAT™ Bladder
REAR BRAKE SRAM G2 RSC, 4-piston caliper, hydraulic disc, 180mm
FRONT BRAKE SRAM G2 RSC, 4-piston caliper, hydraulic disc, 200mm
PEDALS

Geometry

Geometry Chart

Geometry

  S1 S4 S5 S6 S2 S3
Crank Length 165 170 170 175 170 170
Stem Length 40 50 50 50 40 50
Handlebar Width 780 780 780 780 780 780
Saddle Width 155 143 143 143 155 143
Seatpost Length 100 170 170 190 125 150

Geometry

Geometry Chart

Geometry

  S4 S5 S6 S2 S3
Crank Length 165 170 170 175 170 170
Stem Length 40 50 50 50 40 50
Handlebar Width 780 780 780 780 780 780
Saddle Width 155 143 143 143 155 143
Seatpost Length 100 170 170 190 125 150