Specialized Men’s Stumpjumper Comp Alloy 27.5 2018
Bike details
Key information split into simple groups.
Bike summary
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Frame Aluminum
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Wheels 27.5"
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Travel Front 150mm
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Travel Rear 150mm
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Fork Fox Rhythm Float 34
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Groupset XT, SLX
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Suspension Full
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Drivetrain 1 × 11
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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
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, 150mm of travel
Suspension Fork
FOX FLOAT Rhythm 34 27.5, 44mm offset, 2-position, tapered alloy steerer, 15x110mm Boost™, 150mm of travel
Rear Shock
FOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, 210x52.5mm
Drivetrain
Rear Derailleur
Shimano XT, Shadow Plus, GS cage, 11-speed
Shift Levers
Shimano SLX, 11-speed
Cassette
Shimano SLX, 11-speed, 11-46t
Crank
RaceFace Aeffect, 24mm spindle, 170mm crankarm, 32T
Bottom Bracket
Threaded BB, 24mm spindle
Chain
KMC X11, 11-speed w/ Missing Link™
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, 29mm inner width, tubeless ready, 28h
Spokes
DT Swiss Industry
Tires
Butcher, GRID Casing, GRIPTON® compound, 2Bliss Ready, 27.5 x 2.6"
Brakes
Brakes
Shimano SLX, hydraulic disc, resin pads, 200mm rotor
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, Adaptive Edge design, 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 | 1.43 mm | 1.37 mm | 1.37 mm | 1.33 mm |
| Bottom Bracket Height | 336 mm | 336 mm | 336 mm | 336 mm |
| Front Center | 726 mm | 748 mm | 780 mm | 812 mm |
| Rake | 46 mm | 46 mm | 46 mm | 46 mm |
| Trail | 112 mm | 112 mm | 112 mm | 112 mm |
| Stack | 589 mm | 593 mm | 620 mm | 634 mm |
| Reach | 412 mm | 432 mm | 452 mm | 477 mm |
| Top Tube Length | 567 mm | 592 mm | 624 mm | 657 mm |
| Seat Tube Angle | 75.3 ° | 75 ° | 74.6 ° | 74.2 ° |
| Seat Tube Length | 380 mm | 410 mm | 455 mm | 505 mm |
| Head Tube Angle | 65.5 ° | 65.5 ° | 65.5 ° | 65.5 ° |
| Head Tube Length | 105 mm | 110 mm | 140 mm | 155 mm |
| Chainstay Length | 429 mm | 429 mm | 429 mm | 429 mm |
| Wheelbase | 1154 mm | 1176 mm | 1209 mm | 1240 mm |
| Bottom Bracket Drop | 21 mm | 21 mm | 21 mm | 21 mm |
| Standover Height | 749 mm | 754 mm | 766 mm | 767 mm |
| Wheels | 27" | 27" | 27" | 27" |
| 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 Comp Alloy 27.5 is a Specialized Stumpjumper model. Specialized released 352 bikes variations of this model so far. You can get a glimpse at all models from 2018, by clicking on this link.
Model range prices
Specialized Men’s Stumpjumper ST Alloy 29 2018 is the cheapest bike model and costs 1870$. Specialized Men’s S-Works Stumpjumper ST 29 2018 is the most expensive one and costs 9520$.
Safety
When cycling always take safety very seriously. Wear a helmet, obey the traffic rules and wear hi-vis clothes. In short, take care of yourself so others can take care of you.
Average price for Enduro bikes
According to our math, the average price for a trustworthy Enduro bike is 3599$. However, this doesn’t mean that if you spend less money on an Enduro bike, you couldn’t get a decent one. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 3020$. If we compare this with the average Enduro bike cost we notice that the price is 19.17% smaller.
Internal Cable Routing
Another thing to mention, is the internal cable routing of this bike. In conclusion, this helps you too, keep the bike cables in mint condition, and also it looks better. No more cables, surrounding the bike.
Men’s Stumpjumper Comp Alloy 27.5 components
Fork
The fork installed on this bike is the Fox Rhythm Float 34 model. The travel on this model is 150mm. Bike forks are perfect to absorb shocks and provide a great riding experience overall. In conclusion, always look for a fork with decent travel when you buy a bike.
Fork material
The fork on this bike is made out of aluminum, 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
As for the rear shock, this bike has the FOX FLOAT DPS Performance model, with a travel of 150mm. Rear shocks improve riding comfort and give you greater control over all terrains. In conclusion, to increase your riding experience, get a bike with a rear shock if possible.
Wheels size
When it comes to wheels, the Men’s Stumpjumper Comp Alloy 27.5 bike is equipped with the 27.5″ aluminum model. 27.5″ wheels are a mixture between 29″ wheels and 26″ wheels. However, the overall traction of 27.5″ wheels is lower than 29″ wheels.
Brakes
Stopping the bike when needed, it’s essential for your safety. This bike has Hydraulic Disc brakes. With Hydraulic Disc brakes, you’ll be able to stop on a dime, even in wet or icy conditions. To sum up, your safety is in good hands.
Sizes
Men’s Stumpjumper Comp Alloy 27.5 comes in 4 sizes, that range from 158 cm – 199 cm (5.18 ft – 6.53 ft). In conclusion, you won’t have a problem finding one that suits you.
Dropper post
The Specialized model is also equipped 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.
