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Stumpjumper Alloy


2022 Stumpjumper Alloy

The Stumpjumper Alloy brings all-new suspension kinematics and progressive geometry into a full-alloy package that's both lightweight and extremely durable. Outfitted with a no-fuss SRAM SX 12-speed groupset, the Stumpjumper Alloy is your all-access pass for trail adventure.

Technical Specifications

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Alloy chassis and rear-end, asymmetrical design, 29 Trail Geometry, horst pivot BB adjustment, threaded BB, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel

Seat Binder

Alloy, 38.6mm


Rear Shock

X-Fusion 02 Pro RL, Rx Trail Tune, rebound adjust, lockout S1:190x42.5mm, S2-S6: 190x45mm


RockShox 35 Silver, Solo Air, 44mm offset, rebound adjust, TurnKey lockout, 15x110mm Boost™ Maxle® Lite thru-axle, 140mm of travel



Body Geometry Bridge Saddle, steel rails


TranzX dropper, 34.9mm, S1: 100mm, S2: 125mm, S3: 150mm. S4-S5: 170mm, S6- 200mm


Alloy Trail Stem, 35mm bar bore


Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 30mm rise, 780mm width


Specialized Trail Grips


Front Brake

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

Rear Brake

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


Rear Derailleur

SRAM SX Eagle, 12-speed

Shift Levers

SRAM SX Eagle, trigger, 12-speed


SRAM PG-1210 Eagle, 11-50t


SRAM SX Eagle, 12-speed


SRAM SX Eagle, S1:165mm, S2-S5: 170mm, S6: 175mm



Bottom Bracket

SRAM Powerspline

Wheels & Tires


Double-wall alloy, 27mm internal width, 28h

Front Hub

Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h

Rear Hub

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

Front Tire

Butcher, GRID casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3"


Stainless, 14g

Rear Tire

Purgatory, GRID casing, GRIPTON® T7 compound, 29x2.3"

Inner Tubes

Standard, Presta Valve

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


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Stack (Low BB)618mm613mm623mm631mm639mm649mm
Stack (High BB)614mm609mm618mm627mm640mm644mm
Reach (Low BB)410mm430mm450mm475mm500mm530mm
Reach (High BB)416mm435mm455mm480mm505mm535mm
Headtube Length100mm100mm110mm120mm130mm140mm
Headtube Angle (Low BB)65°65°65°65°65°65°
Headtube Angle (High BB)65.5°65.5°65.5°65.5°65.5°65.5°
BB Height (Low BB)327mm332mm332mm332mm332mm332mm
BB Height (High BB)334mm339mm339mm339mm339mm339mm
BB Drop (Low BB)47mm42mm42mm42mm42mm42mm
BB Drop (High BB)40mm35mm35mm35mm35mm35mm
Trail (Low BB)126mm126mm126mm126mm126mm126mm
Trail (High BB)122mm122mm122mm122mm122mm122mm
Fork Length (full)550mm550mm550mm550mm550mm550mm
Fork Rake/Offset44mm44mm44mm44mm44mm44mm
Front Center726mm746mm770mm799mm828mm863mm
Chainstay Length (Low BB)444mm444mm444mm444mm454mm454mm
Chainstay Length (High BB)440mm440mm440mm440mm450mm450mm
Wheelbase (Low BB)1168mm1188mm1212mm1241mm1280mm1315mm
Wheelbase (High BB)1164mm1184mm1208mm1237mm1276mm1311mm
Top-tube Length (horizontal)545mm563mm586mm615mm643mm676mm
Bike Standover Height742mm742mm750mm753mm777mm784mm
Seat Tube Length385mm385mm405mm425mm445mm465mm
Seat Tube Angle (Low BB)77.7°77.7°77.5°77.2°77°76.9°
Seat Tube Angle (High BB)78.2°78.2°77.9°77.7°77.5°77.3°
Max Seatpost Insertion190mm190mm210mm230mm250mm270mm
Min Seatpost Insertion100mm100mm100mm100mm100mm100mm

Rider Reviews

  • 4.5
  • 96 Reviews

Great bike, but a couple of things...

1) The rear derailleur: I have no idea how many times I had to adjust the SRAM SX. This was the first thing that I upgraded. I upgraded to the SRAM GX. However, if you get it tuned just right, it works like a dream. (My friends have the same derailleur on their bike, and for them its working fine, but for me it just was not). 2) The rear shock: Due to the bike having an asymmetrical frame, the rear shock, the X-FUSION Pro RL, is under load unevenly. In short, the seals might burst or break over time. For me, the dust seal got worn out and the shock was leaking oil and loosing air pressure (which is odd). An expert told me that these X-FUSION shocks are prone to that. This happened only 1 and a half months in to riding the bike. I upgraded to the Rockshox Deluxe Ultimate. Other than that, there are not much other things to point out. Everything else is great.



Fantastic bike

I would give this 5 stars but the Sram Eagle SX components let it down too much. After a ride or two, you end up fiddling with the shifting. I love the bike and the frame is worthy of upgrades. Upgrades so far: Hunt Trail Wide Wheelset SX Dub Crank GX Eagle cassette, chain and derailleur GX Grip Shift PNW Range bar X-Fusion Slide 34 Boost 140 mm fork



Great bike, SX should not exist

When I purchased the stump-jumper I determined that one step up in components (comp) may not suffice, so I decided to buy the base version and upgrade components as they sploded. I can say it's a great bike, but I don't think bike shop manufacturers should sell bicycles with SX group-sets. It's like it has to be just perfectly adjusted to shift right. Eventually I will upgrade the wheels, group-set, and rear shock. At that point, I think it will be quite the stump-jumper, because I like everything else about the bike.



Really good bike but…

Really good bike but the derailur might be a problem when first getting it but after a little bit the derailur will be dialed overall really good big for jumps and downhill

Would Recommend?



Great Bike couple issues

Ive had my bike for 1 year now and the entry level parts are not great ive had issues with my front break where it moves into the bar and ive taken it to the shop and the leaver bushings are worn out and connot be replaced. And the sram sx eagle deraileur is great after a service but the clutch looses tightness and the bolt strips easily. But its a great bike other the issues of it, the forks and shock has held up of lots of use and i recommend a rebulid every year when needed, Other than that great starter dual sus bike



Good bike, but bad gears

I've had my bike for a year now and I think that the specs regarding the entry-level is way to bad. I have had major trouble with the back breaks and needing to bleed them on a regular basis. Not happy at all! Regarding the gears, I feel that I had alot less trouble with the bikes that have a Shimano system. So lately the bike has been more in the garage than on the trails. I guess it is learning money, but really takes the edge of riding the bike.



37 lbs

This bike is 37 lbs stock in size s3 and size s4



Awesome bike

I ride it all the time and it has been amazing.

Verified Buyer




Excellent ride

Everything about this bike is quality, excellent ride, great balance, responsive just what’s needed on a trail today and as for the price point it can’t be beaten

Would Recommend?



Great value but chunky

I've had my stumpy alloy for a month and have had the bike out 10 days. Pros: solid components for the price. Really comfortable on down hill and rolling single track. It's handsome, it's has a dropper post (this is not that common for price point) easy to lock out both front and rear suspension. Travel on both shocks is pretty goldilocks for an average rider Con: the bike is a bit overweight. mine weighs in between 34 and 35 lbs. This is fairly noticeable on long climbs. I'm coming over from a really light hardtail so hoping I get used to it. Conclusion: it's one of the best values in this price range. I picked mine up for 2100 on sale

Would Recommend?