Specialized Men’s Stumpjumper ST Comp Carbon 27.5 – 12-speed 2020
Bike details
Key information split into simple groups.
Bike summary
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Frame Carbon
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Wheels 29"
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Travel Front 130mm
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Travel Rear 130mm
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Fork Fox Rhythm Float 34
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Groupset NX Eagle
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Suspension Full
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Drivetrain 1 × 12
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Brakes Hydraulic Disc
Recommended size guide.
SM
158cm - 171cm
MD
168cm - 180cm
LG
178cm - 189cm
XL
186cm - 199cm
Parts list
Main components, grouped by system.
Bike components
Frame
Frame
FACT 11m, full carbon chassis and rear end, asymmetrical design, 27.5 Trail Geometry, SWAT™ Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 130mm of travel
Suspension Fork
FOX FLOAT Rhythm 34, GRIP Damper, 44mm offset, 2-position sweep adjust, 15x110mm, tapered alloy steerer, 130mm of travel
Rear Shock
FOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 190x45.0mm
Drivetrain
Rear Derailleur
SRAM NX Eagle, 12-speed
Shift Levers
SRAM NX Eagle, trigger, 12-speed
Cassette
SRAM NX Eagle, 12-speed, 11-50t
Crank
SRAM NX Eagle, DUB, 170mm, Steel, 32T
Bottom Bracket
SRAM DUB, threaded BB
Chain
SRAM NX Eagle, 12-speed
Pedals
Specialized Dirt
Wheels
Front Hub
Specialized, sealed cartridge bearings, 15x110mm spacing, 28h
Rear Hub
Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h
Rims
Roval Traverse 27.5, hookless alloy, 30mm inner width, tubeless ready
Spokes
DT Swiss Industry
Tires
Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.3"
Brakes
Brakes
SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm
Cockpit
Stem
Specialized Trail, 3D-forged alloy, 4-bolt, 6-degree rise
Handlebar
Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
Grips
Specialized Sip grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
Seat
Saddle
Body Geometry Phenom Comp, hollow Cr-Mo rails, 143mm
Seatpost
X-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SRL LE lever, 34.9mm, S: 125mm, M/L/XL: 150mm of travel
Fit data
Numbers for sizing and ride feel.
| Size | SM | MD | LG | XL |
|---|---|---|---|---|
| Stack Reach Ratio | 1.38 mm | 1.33 mm | 1.33 mm | 1.29 mm |
| Bottom Bracket Height | 325 mm | 325 mm | 325 mm | 325 mm |
| Front Center | 718 mm | 739 mm | 772 mm | 803 mm |
| Rake | 46 mm | 46 mm | 46 mm | 46 mm |
| Trail | 103 mm | 103 mm | 103 mm | 103 mm |
| Stack | 583 mm | 587 mm | 615 mm | 628 mm |
| Reach | 422 mm | 441 mm | 462 mm | 487 mm |
| Top Tube Length | 565 mm | 588 mm | 621 mm | 654 mm |
| Seat Tube Angle | 76.3 ° | 76 ° | 75.6 ° | 75.2 ° |
| Seat Tube Length | 380 mm | 410 mm | 455 mm | 505 mm |
| Head Tube Angle | 66.5 ° | 66.5 ° | 66.5 ° | 66.5 ° |
| Head Tube Length | 105 mm | 110 mm | 140 mm | 155 mm |
| Chainstay Length | 429 mm | 429 mm | 429 mm | 429 mm |
| Wheelbase | 1146 mm | 1167 mm | 1200 mm | 1231 mm |
| Bottom Bracket Drop | 28 mm | 28 mm | 28 mm | 28 mm |
| Standover Height | 728 mm | 732 mm | 747 mm | 763 mm |
| Wheels | 29" | 29" | 29" | 29" |
| Rider Min Height | 158 cm | 168 cm | 178 cm | 186 cm |
| Rider Max Height | 171 cm | 180 cm | 189 cm | 199 cm |
Model Overview
Men’s Stumpjumper ST Comp Carbon 27.5 – 12-speed is part of the Specialized Stumpjumper model. There are 352 bikes that carry this model name. Take a sneak peek at all Specialized Stumpjumper bikes models from 2020, by clicking here.
Model range prices
Specialized Stumpjumper ST Alloy 27.5 2020 is the most economical model, with a starting price of 2010$. Specialized S-Works Stumpjumper SRAM AXS 29 2020 on the other hand costs 10520$, and is the most expensive model.
Safety
When you go for a ride, don’t forget to put your helmet on. Moreover, ride with traffic, not against it. This will help you stay visible to drivers and also makes it easier for them to see you.
Average price for Trail bikes
If you want to purchase a solid Trail bike, it is important to know that the average cost is 2762$. However, even if your budget is less than the average, you might still be able to get a top-quality Trail bike. To make sure you don’t pay a higher amount than normal for your bike, always do some components analysis and read reviews.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 4520$. If we compare this with the average Trail bike cost we notice that the price is 63.65% more expensive.
Internal Cable Routing
It’s also important to mention the internal cable routing that this bike has. In short, this will allow you to keep your bike cables in great condition. Say goodbye to hanging cables.
Men’s Stumpjumper ST Comp Carbon 27.5 – 12-speed components
Fork
Specialized Men’s Stumpjumper ST Comp Carbon 27.5 – 12-speed 2020 bike is equipped with the Fox Rhythm Float 34 fork, and has 130mm travel. Bike forks are great for shock absorption and provide you with a smooth ride. In conclusion, always look for a fork with decent travel when you buy a bike.
Fork material
Men’s Stumpjumper ST Comp Carbon 27.5 – 12-speed has an aluminum fork, which doesn’t add too much extra weight to the bike. However, it is not so stiff as steel or carbon forks are.
Rear Shock
Specialized Men’s Stumpjumper ST Comp Carbon 27.5 – 12-speed bike has the FOX FLOAT DPS Performance model installed, and has a travel of 130mm. Rear shocks give you increased comfort, control, and traction, which is important when cornering or braking. This allows you to ride faster on bumpy roads. In conclusion, to increase your riding experience, get a bike with a rear shock if possible.
Wheels
When leaving the production line, the Men’s Stumpjumper ST Comp Carbon 27.5 – 12-speed model has 29″ aluminum wheels. Having 29″ wheels means that you need less fork travel, leading to a reduction of the pedal bob effect. However, the 29″ wheels will add a little more weight to the bike itself.
Brakes
For your safety, it is important to have quality breaks on your bike. Specialized Men’s Stumpjumper ST Comp Carbon 27.5 – 12-speed has Hydraulic Disc brakes installed. Hydraulic disc brakes are perfect for mountain biking, road cycling, and commuting. To sum up, your safety is in good hands.
Sizes
There are 4 sizes available for this model. Rider height can be anywhere between 158 cm – 199 cm (5.18 ft – 6.53 ft). In short, you can easily find one that suits you.
Dropper post
Specialized Men’s Stumpjumper ST Comp Carbon 27.5 – 12-speed comes with a dropper post. A dropper post is a must-have these days if you’re riding anything remotely technical. The main benefit of a dropper post is increased safety while riding. As mentioned above, the lever system allows you to quickly move the saddle out of the way when approaching descents or trail obstacles.
