Specialized Stumpjumper Comp Alloy 2023
2023 Mountain
Estimate price |
4,000$
Weight | 15 kg 
Bike details
Overview
Key information split into simple groups.
Bike summary
-
-
Frame Aluminum -
Wheels 29" -
Travel Front 140mm -
Travel Rear 130mm -
Fork Fox Rhythm Float 34
-
Groupset NX Eagle -
Suspension Full -
Drivetrain 1 × 12 -
Brakes Hydraulic Disc
Sizing
Recommended size guide.
S1
149cm - 160cm
S2
157cm - 172cm
S3
165cm - 180cm
S4
172cm - 188cm
S5
177cm - 193cm
S6
188cm - 203cm
Parts list
Components
Main components, grouped by system.
Bike components
Frame
Frame
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
Suspension Fork
FOX FLOAT 34 Rhythm, GRIP damper, two position Sweep adjustment, 15x110mm axle, 44mm offset, 140mm of travel
Rear Shock
FOX FLOAT DPS Performance, Rx Trail Tune, rebound and 3-position compression adjust, S1:190x42.5mm, S2-S6: 190x45mm
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, S1:165mm, S2-S5: 170mm, S6: 175mm, Steel, 30T
Bottom Bracket
SRAM DUB, BSA 73mm, Threaded
Chain
SRAM NX Eagle, 12-speed
Wheels
Front Hub
Alloy, sealed cartridge bearings, 15x110mm thru-axle, 28h
Rear Hub
Alloy, sealed cartridge bearings, 12x148mm thru-axle, 28h
Rims
Specialized 29, hookless alloy, 30mm inner width, tubeless ready
Spokes
DT Swiss Industry
Tires
Front: Butcher, GRID casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3", Rear: Purgatory, GRID casing, GRIPTON® T7 compound, 29x2.3"
Brakes
Brakes
Front: SRAM G2 R, 4-piston caliper, hydraulic disc, 200mm, Rear: SRAM G2 R, 4-piston caliper, hydraulic disc, 200mm
Cockpit
Stem
Alloy Trail Stem, 35mm bar bore
Handlebar
Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 30mm rise, 780mm width
Seat
Saddle
Bridge Comp, Hollow Cr-mo rails, 155/143mm
Seatpost
X-Fusion Manic, infinite adjustable, two-bolt head, bottom mount cable routing, remote SLR LE lever, 34.9, S1: 100mm, S2: 125mm, S3: 150mm, S4/S5: 175mm, S6: 190mm
Fit data
Geometry
Numbers for sizing and ride feel.
| Size | S1 | S2 | S3 | S4 | S5 | S6 |
|---|---|---|---|---|---|---|
| Stack Reach Ratio | 1.5 mm | 1.42 mm | 1.38 mm | 1.33 mm | 1.28 mm | 1.22 mm |
| Bottom Bracket Height | 327 mm | 332 mm | 332 mm | 332 mm | 332 mm | 332 mm |
| Front Center | 726 mm | 746 mm | 770 mm | 799 mm | 828 mm | 863 mm |
| Rake | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Trail | 126 mm | 126 mm | 126 mm | 126 mm | 126 mm | 126 mm |
| Stack | 620 mm | 615 mm | 625 mm | 633 mm | 641 mm | 651 mm |
| Reach | 412 mm | 432 mm | 452 mm | 477 mm | 502 mm | 532 mm |
| Top Tube Length | 547 mm | 565 mm | 588 mm | 617 mm | 645 mm | 678 mm |
| Seat Tube Angle | 77.7 ° | 77.7 ° | 77.5 ° | 77.2 ° | 77 ° | 76.9 ° |
| Seat Tube Length | 385 mm | 385 mm | 405 mm | 425 mm | 445 mm | 465 mm |
| Head Tube Angle | 65 ° | 65 ° | 65 ° | 65 ° | 65 ° | 65 ° |
| Head Tube Length | 100 mm | 100 mm | 110 mm | 120 mm | 130 mm | 140 mm |
| Chainstay Length | 446 mm | 446 mm | 446 mm | 446 mm | 456 mm | 456 mm |
| Wheelbase | 1170 mm | 1190 mm | 1214 mm | 1243 mm | 1282 mm | 1317 mm |
| Bottom Bracket Drop | 47 mm | 42 mm | 42 mm | 42 mm | 42 mm | 42 mm |
| Standover Height | 744 mm | 744 mm | 752 mm | 755 mm | 779 mm | 786 mm |
| Wheels | 29" | 29" | 29" | 29" | 29" | 29" |
| Rider Min Height | 149 cm | 157 cm | 165 cm | 172 cm | 177 cm | 188 cm |
| Rider Max Height | 160 cm | 172 cm | 180 cm | 188 cm | 193 cm | 203 cm |
Model Overview
Stumpjumper Comp Alloy completes the Specialized Stumpjumper model. There are 352 bikes that carry this model name. Take a sneak peek at all Specialized Stumpjumper bikes models from 2023, by clicking here.
Model range prices
The most economical model, the Specialized Stumpjumper Alloy 2023 has a starting price of 2800$. Specialized S-Works Stumpjumper LTD 2023 on the other hand is the most expensive at 11500$.
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$. However, you could also get a good Trail bike even if you pay a lower amount than the average price. As a general rule of thumb, you should always read reviews about the bike and its components before buying it to ensure you don’t pay too much.
Furthermore, if we have a quick look at this model’s cost, we can see that at its release date the price was 4000$. Doing a quick comparison, we notice that Stumpjumper Comp Alloy price is 44.82% more expensive than the average cost of a Trail bike.
Average weight for Trail bikes
If we make a quick analysis of the average weight of a Trail bike, we get 12.98 kg (28.62 lbs). It is a good advantage to have a lighter bike than the average. However, a heavier bike is more efficient on descents.
Weighing 15 kg (33.07 lbs), the Stumpjumper Comp Alloy model is much heavier than average. In other words, this model is 15.56% heavier than the average Trail bike.
Stumpjumper Comp Alloy components
Fork
The Fox Rhythm Float 34 is included from the factory. It has a travel distance of 140mm. Bike forks are good shock absorbers and provide a smooth ride and a great experience. In short, make sure you choose one with a decent fork when you purchase your dream bike.
Rear Shock
From the factory, it comes with the FOX FLOAT DPS Performance rear shock model, which has a travel of 130mm. Rear shocks improve riding comfort and give you greater control over all terrains. To sum up, get a full-suspension bike if you want the smoothest rides.
Wheels size
The Stumpjumper Comp Alloy 2023 bike is equipped with 29″ aluminum wheels when leaving the factory. Having 29″ wheels means that you need less fork travel, leading to a reduction of the pedal bob effect. However, if you’re not a tall person, you might find it difficult to adapt to this wheel size.
Brakes
Nothing is more important on a bike than its ability to brake properly. Specialized Stumpjumper Comp Alloy is equipped with Hydraulic Disc brakes. Hydraulic disc brakes provide amazing stopping power, no matter what the terrain. To sum up, you can ride your bike with confidence.
Sizes
There are 6 sizes available for this model. Rider height can be anywhere between 149 cm – 203 cm (4.89 ft – 6.66 ft). In conclusion, finding one for you shouldn’t be a problem.
Dropper post
Specialized Stumpjumper Comp Alloy includes a dropper post. Therefore, climbing or descending will be a breeze.