Men's Stumpjumper ST 27.5

2019 Men's Stumpjumper ST 27.5

The new Stumpjumper ST uses new tube shapes and an asymmetrical design to ensure that you get awesome ride characteristics. So get ready, because 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 2.8" 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.

Technical Specifications

FRAMESET

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

SUSPENSION

FORK

RockShox Recon RL, Solo Air, 42mm 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, pedal platform, 190x42.5mm

COCKPIT

HANDLEBARS

Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width

STEM

Specialized, 3D-forged alloy, 4-bolt, 7-degree rise

GRIPS

Specialized Sip Grip, half-waffle, slip-on

SADDLE

Body Geometry Henge Sport, steel rails, 143mm

SEATPOST

Specialized 2-bolt head, forged alloy, 5mm offset, micro-adjust, 34.9mm

SEAT BINDER

Specialized bolt-type, alloy, 38.6mm

BRAKES

FRONT BRAKE

Tektro Gemini Comp, hydraulic disc, resin pad, 200mm

REAR BRAKE

Tektro Gemini Comp, hydraulic disc, resin pad, 180mm

DRIVETRAIN

SHIFT LEVERS

Shimano SLX, 11-speed

REAR DERAILLEUR

Shimano SLX, Shadow Plus, 11-speed

CASSETTE

SunRace, 11-speed, 11-46t

CRANKSET

SRAM NX, Boost™, direct-mount XSYNC, Powerspline

CHAINRINGS

Steel, 32T

CHAIN

KMC X11, 11-speed w/ Missing Link™

BOTTOM BRACKET

SRAM Powerspline

WHEELS & TIRES

RIMS

Double-wall, 27mm internal width

FRONT HUB

Specialized, sealed cartridge bearings, 15x110mm spacing, 32h

REAR HUB

Specialized, sealed cartridge bearings, 12x148mm thru-axle, 32h

SPOKES

Stainless, 14g

FRONT TIRE

Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.3"

REAR TIRE

Purgatory, GRID casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.3"

INNER TUBES

Presta, 40mm valve

ACCESSORIES

PEDALS

Specialized Dirt

* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

	S	M	L	XL
Crank Length	170mm	170mm	170mm	170mm
Handlebar Width	780mm	780mm	780mm	780mm
Stem Length	50mm	50mm	50mm	50mm
Saddle Width	143mm	143mm	143mm	143mm
Seatpost Length	375mm	375mm	435mm	435mm
Stack	586mm	590mm	618mm	631mm
Reach	425mm	444mm	465mm	490mm
Head Tube Length	105mm	110mm	140mm	155mm
Head Tube Angle	66.5°	66.5°	66.5°	66.5°
BB Height	325mm	325mm	325mm	325mm
BB Drop	28mm	28mm	28mm	28mm
Trail	103mm	103mm	103mm	103mm
Fork Length, Full	522mm	522mm	522mm	522mm
Fork Rake/Offset	46mm	46mm	46mm	46mm
Front Center	718mm	739mm	772mm	803mm
Chainstay Length	432mm	432mm	432mm	432mm
Wheelbase	1149mm	1170mm	1203mm	1234mm
Top Tube Length, Horizontal	568mm	591mm	624mm	657mm
Bike Standover Height	744mm	749mm	761mm	762mm
Seat Tube Length	380mm	410mm	455mm	505mm
Seat Tube Angle	76.3°	76°	75.6°	75.2°

Manual Downloads

Dodatek - POUŽITÍ TRENAŽÉRU

2019 Rider/Bike Weight Limits and Terrain Conditions

Stumpjumper Sidearm Pivot Parts Schematic

Stumpjumper FSR User Manual

Specialized Bicycle Owner's Manual (All Languages)

Specialized Bicycle Owner's Manual (English)

Stumpjumper Sidearm Small Parts Schematic

Specialized Bicycle Owner's Manual Addendum: Riding With Kids

Trainer Usage Addendum to the Bicycle Owner's Manual

Rider Reviews

4.4
7 Reviews

10/23/2020

Yes Please

This bike is great!!! Had it for a couple of months now and really starting to rip into the sport. I would recommend this. A dropper in future would be a nice upgrade, but all-round, at least a 9.9/10

Name:: Gav

Helpful?

07/28/2019

take a second look on it

one if your are getting into the sport it is a great bike for that but if you a kid and you grow like a weed and it does not even have a dropper and when you do get a dropper you can only put a 75mm and maybe 100mm dropper but no logger and so every time if you about to hit some thing fun like how mountain bikes are suppose to be and you don't want to have fun get this bike but if you do want to have fun save your moneys and securely look into a better bike. specialized really come on please do better.

Name:: Hayden

Helpful?

05/05/2019

Solid bike at a solid price.

I recently upgraded to this Stumpjumper from my Pitch Sport hardtail. Let me tell you, it is a world of difference. I've been riding bikes for 24 years, but this is by far the smoothest and most flowy one yet. This bike gives you confidence in all the tight and fast downhills and the help you need to get up those steep climbs. I love the bike for the price. Next steps are upgrading suspension and buying a dropper seat post!

Name:: Slambert

Helpful?

02/14/2019

Way above it's value 10/10

I've been an avid mountain biker since around ,10 now I'm 18 and I've ridden everything from full out downhill bikes to XC race bikes and I gotta say this is by far the best bike I've ridden I'm 6'3 but I opted for a large instead of an XL and I still fit pretty good I've had it since early August and have put a couple hundred miles on it already and I've kept up with riders on bikes much more expensive and even managed to ride it at a downhill park with no issue. I 100 percent recommend this bike to anyone who wants a trail bike and am likely to write another review as I'm taking it out west this summer.

Name:: Dan G.

Helpful?

01/27/2019

So happy with this bike.

I finally decided to upgrade from my 15 year old Giant NXT full sespension. What a difference! I had no idea how nice a bike could ride. It felt like a lot of money, but now that I've ridden it so many times and every experience is wonderful, I couldn't be happier with my purchase. The geometry of bikes has changed so much in the last decade.

Name:: Nor B.

Helpful?

12/19/2018

Fun fun bike

After riding several full suspension bikes I finally decided to buy one for myself. The base Stumpy model had everything I needed, a great deal for the money. I've wanted a Stumpjumper since the mid 90's and here was my chance. And it has filled every expectation. The bike goes where you want it to go, climbs like a champ even when the suspension isn't locked out, and balances like a dream. I've never felt so comfortable on a bike.

Name:: Brian O.

Helpful?

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