Specialized Men’s Stumpjumper ST Expert 27.5 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 RockShox Pike RC
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Groupset GX Eagle, Truvativ Descendant
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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
RockShox Pike RC, DebonAir, rebound / low-speed compression adjust, tapered steerer, 46mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 130mm of travel
Rear Shock
RockShox Deluxe RT3, Rx Trail Tune, rebound & 3-position compression adjust, 190x45.0mm
Drivetrain
Rear Derailleur
SRAM GX Eagle, 12-speed
Shift Levers
SRAM GX Eagle, trigger, 12-speed
Cassette
SRAM GX Eagle, 12-speed, 10-50t
Crank
Truvativ Descendant, aluminum, Boost™ 148, 170mm crankarm, 24mm spindle, 32T
Bottom Bracket
SRAM GXP
Chain
SRAM GX 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 Carbon 27.5, hookless carbon, 30mm inner width, tubeless ready, hand-built
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, forged alloy, 4-bolt, 5mm rise, 40mm
Handlebar
Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
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
Command Post IRcc, 16-position micro-height adjustable, two-bolt head, bottom mount cable routing, remote SRL lever, 34.9mm, S: 130mm, M/L/XL: 160mm 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 |
About this model
Men’s Stumpjumper ST Expert 27.5 is a Specialized Stumpjumper model. 352 bikes variations carry this model name so far. You can easily view all of the Specialized Stumpjumper bikes models from 2020, 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
Take safety seriously when you ride your bike, and always wear your helmet. Moreover, don’t ride on the sidewalk. This is actually against the law in some states and can be dangerous for both you and pedestrians.
Trail bikes average price
According to our math, the average price for a trustworthy Trail bike is 2762$. However, you could also get a good Trail bike even if you pay a lower amount than the average price. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Furthermore, this bike was made available in 2020 for 5000$. In conclusion, this bike price is 81.03% higher than the price of the average Trail bike.
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.
Overview of components
Fork
The Men’s Stumpjumper ST Expert 27.5 comes factory-installed with the RockShox Pike RC fork. This has a travel range of 130mm. Bike forks absorb the shocks and give you a smooth and pleasant ride. In conclusion, always look for a fork with decent travel when you buy a bike.
Rear Shock
From the factory, it comes with the RockShox Deluxe RT3 rear shock model, which 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 short, if you want smooth rides, get a full-suspension bicycle.
Wheels size
When it comes to wheels, the Men’s Stumpjumper ST Expert 27.5 bike is equipped with the 29″ carbon model. 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 Expert 27.5 has Hydraulic Disc brakes installed. 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
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, it won’t be difficult to find the right one for you.
Dropper post
Every bike should have a dropper post, and this one does. Therefore, climbing or descending will be a breeze.
