Rear tire: 27.5×2.3.
Velopedia Bicycle Archive
2025 Specialized Stumpjumper 15 Alloy
Original specifications: 16.90 kg (37 lb, 4.1 oz) published weight · geometry for 5 published sizes.
Selling this bike? Get the spec link and selling options
At a glance
- Model year
- 2025
- Category
- Mountain
- Original MSRP
- $5,499.99
- Sizes
- S2, S3, S4, S5, S6
- Colors
- Satin Brushed Aluminum / Cast Blue
- Weight
- 16.90 kg (37 lb, 4.1 oz)
- Geometry
- 5 manufacturer sizes
- In this record
- 20 specifications · 7 archived images · original MSRP · geometry
- Archive ID
- 900001005
Original buildAluminum
Frameset
| Frame Construction | M5 Alloy chassis and rear-end, Trail Geometry, SWAT™ Door integration, head tube angle adjustment, threaded BB, internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, SRAM UDH compatible, 145mm of travel |
|---|---|
| Frame Material | Aluminum |
| Fork | FOX FLOAT 38 Factory, GRIP X2 damper, HS and LS rebound and compression adjustment, 15x110mm QR axle, 44mm offset, 160mm of travel |
| Rear Shock | FOX DHX Factory, Ride Dynamics Trail Tune, 210x55mm, S2: 400lbs, S3: 450lbs, S4: 500bs, S5: 550lbs, S6: 600lbs |
Drivetrain
| Shifters | Shimano SLX, M7100, 12spd |
|---|---|
| Rear Derailleur | Shimano SLX, M7100, SGS, 12-speed |
| Crankset | Shimano SLX, M7120, 32T ring, 55mm chainline, S2-S3:165mm, S4-S6: 170mm |
| Bottom Bracket | Shimano, BB-MT801, Threaded |
| Cassette | Shimano SLX, CS-M7100, 12-speed, 10-51t |
| Chain | Shimano SLX, M7100, 12-speed |
Brakes
| Brakes | (F) TRP DH-R EVO, 4-piston caliper, hydraulic disc, 220mm / (R) TRP DH-R EVO, 4-piston caliper, hydraulic disc, 203mm |
|---|
Cockpit & Contact Points
| Handlebar | Deity, Racepoint, 5-degree upsweep, 9-degree backsweep, 810 width, S2: 25mm rise: S3-S6: 38mm rise |
|---|---|
| Stem | Deity, 35mm clamp, 35mm length |
| Saddle | Bridge Comp, Hollow Cr-mo rails, S1-S2: 155mm, S3-S6: 143mm |
| Seatpost | PNW Loam OE Dropper, tool-less travel adjust, Range lever, 34.9, S2: 150mm, S3: 170mm, S4-S6: 200mm |
Wheels & Tires
| Hubs | (F) DT Swiss 370, 15x110mm, 28h / (R) DT Swiss 370, 12x148mm, 32h |
|---|---|
| Rims | Roval Traverse, hookless alloy, 30mm inner width, tubeless ready, Front: 29, Rear: 27.5 |
| Spokes | Sapim Force |
| Front Tire | Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3" |
| Rear Tire | Eliminator, GRID GRAVITY casing, GRIPTON® T9/T7 compound, 2Bliss Ready, 27.5x2.3" |
Geometry
Frame measurements by size.
Frame diagram
Select an available measurement to locate it on the frame.
All geometry measurements5 sizes · 19 measurements
| Measurement | S2 | S3 | S4 | S5 | S6 |
|---|---|---|---|---|---|
| Seat tube | 385 mm | 405 mm | 425 mm | 445 mm | 465 mm |
| Effective top tube | 574 mm | 596 mm | 625 mm | 649 mm | 678 mm |
| Head tube | 100 mm | 110 mm | 125 mm | 140 mm | 155 mm |
| Head-tube angle | 64° | 64° | 64° | 64° | 64° |
| Seat-tube angle | 76.5° | 76.5° | 76° | 76° | 76° |
| Chainstay / rear center | 432 mm | 432 mm | 432 mm | 442 mm | 442 mm |
| Wheelbase | 1186 mm | 1216 mm | 1247 mm | 1288 mm | 1325 mm |
| Bottom-bracket drop | 35 mm | 35 mm | 35 mm | 35 mm | 35 mm |
| Bottom-bracket height | 340 mm | 340 mm | 340 mm | 340 mm | 340 mm |
| Reach | 420 mm | 445 mm | 470 mm | 495 mm | 525 mm |
| Stack | 621 mm | 630 mm | 644 mm | 657 mm | 671 mm |
| Standover height | 751 mm | 745 mm | 745 mm | 745 mm | 751 mm |
| Fork offset / rake | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Front center | 755 mm | 785 mm | 816 mm | 848 mm | 884 mm |
| Trail | 134 mm | 134 mm | 134 mm | 134 mm | 134 mm |
| Fork length / axle-to-crown | 573 mm | 573 mm | 573 mm | 573 mm | 573 mm |
| Crank length | 165 mm | 165 mm | 170 mm | 170 mm | 170 mm |
| Stem length | 35 mm | 35 mm | 35 mm | 35 mm | 35 mm |
| Handlebar width | 810 mm | 810 mm | 810 mm | 810 mm | 810 mm |
Dimensions as recorded.
Gearing
Lower gears help on climbs. Higher gears suit higher speeds.
RPM = pedal turns per minute.
How it works
Ratio = front teeth ÷ rear teeth. Hub gears also include the hub’s internal ratio. A 400% range means the highest ratio is four times the lowest.
Speeds are estimates from tire size and pedal cadence. Actual speeds vary.
Parts & serviceability
Find replacement parts

Shimano SLX CN-M7100 12-Speed Chain Silver, 126 Links
126 Links
More parts (5)

Shimano XT BB-MT801 Bottom Bracket BSA Threaded, One Size
One Size

Shimano SLX RD-M7100 Rear Derailleur Black, SGS, 12-Speed
SGS, 12-Speed

PNW Components Loam Dropper Post - Gen 2 Black, 34.9x200mm
34.9x200mm
Replacement option · verify fit

Bike Yoke Revive 2.0 Dropper Seatpost Black, 34.9mm, 125mm
34.9mm, 125mm
Replacement option · verify fit
Based on the original build. Confirm the model, size and fit before ordering; installed parts may differ. As an Amazon Associate I earn from qualifying purchases. Velopedia may also earn from qualifying eBay purchases. Velopedia may also earn from qualifying retailer purchases.
Bike-specific inspection checklist 23 checks based on 6 archived component groups Open checklistClose checklist
This checklist uses the archived equipment for this bike. It cannot confirm the condition, service history or later component changes of the example in front of you.
Identity and fit
Follow the full used-bike inspection order →Archived: 2025 Specialized Stumpjumper 15 Alloy · Mountain · Published sizes: S2, S3, S4, S5, S6
Frame and fork
Inspect the frame and fork →Archived: Frame: M5 Alloy chassis and rear-end, Trail Geometry, SWAT™ Door integration, head tube angle adjustment, threaded BB, internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, SRAM UDH compatible, 145mm of travel · Fork: FOX FLOAT 38 Factory, GRIP X2 damper, HS and LS rebound and compression adjustment, 15x110mm QR axle, 44mm offset, 160mm of travel
Suspension
Evaluate the suspension →Archived: Fork: FOX FLOAT 38 Factory, GRIP X2 damper, HS and LS rebound and compression adjustment, 15x110mm QR axle, 44mm offset, 160mm of travel · Rear shock: FOX DHX Factory, Ride Dynamics Trail Tune, 210x55mm, S2: 400lbs, S3: 450lbs, S4: 500bs, S5: 550lbs, S6: 600lbs
Drivetrain
Check drivetrain wear →Archived: Shifters: Shimano SLX, M7100, 12spd · Rear derailleur: Shimano SLX, M7100, SGS, 12-speed · Crankset: Shimano SLX, M7120, 32T ring, 55mm chainline, S2-S3:165mm, S4-S6: 170mm · Bottom bracket: Shimano, BB-MT801, Threaded · Cassette: Shimano SLX, CS-M7100, 12-speed, 10-51t · Chain: Shimano SLX, M7100, 12-speed
Brakes
Inspect the brakes →Archived: Brakes: (F) TRP DH-R EVO, 4-piston caliper, hydraulic disc, 220mm / (R) TRP DH-R EVO, 4-piston caliper, hydraulic disc, 203mm
Wheels and tires
Check wheels and tires →Archived: Rims: Roval Traverse, hookless alloy, 30mm inner width, tubeless ready, Front: 29, Rear: 27.5 · Hubs: (F) DT Swiss 370, 15x110mm, 28h / (R) DT Swiss 370, 12x148mm, 32h · Front tire: Butcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3" · Rear tire: Eliminator, GRID GRAVITY casing, GRIPTON® T9/T7 compound, 2Bliss Ready, 27.5x2.3"
Controls and contact points
Archived: Handlebar: Deity, Racepoint, 5-degree upsweep, 9-degree backsweep, 810 width, S2: 25mm rise: S3-S6: 38mm rise · Stem: Deity, 35mm clamp, 35mm length · Seatpost: PNW Loam OE Dropper, tool-less travel adjust, Range lever, 34.9, S2: 150mm, S3: 170mm, S4-S6: 200mm · Saddle: Bridge Comp, Hollow Cr-mo rails, S1-S2: 155mm, S3-S6: 143mm
Before and during the test ride
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Gallery7 images
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Specifications are presented as a reference. Components may vary by market, size, production run, or later manufacturer revisions.





