VelopediaBicycle Archive · Specification report

2025 Specialized Stumpjumper 15 Alloy

Velopedia Archive ID 900001005

Overview

Model year2025
BrandSpecialized
ModelStumpjumper 15 Alloy
Bicycle typeMountain
Archive ID900001005
Original MSRP$5,499.99
ColorsSatin Brushed Aluminum / Cast Blue
SizesS2; S3; S4; S5; S6
Weight16.90 kg (37 lb, 4.1 oz)

Frameset

Frame constructionM5 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 materialAluminum
ForkFOX FLOAT 38 Factory, GRIP X2 damper, HS and LS rebound and compression adjustment, 15x110mm QR axle, 44mm offset, 160mm of travel
Rear shockFOX DHX Factory, Ride Dynamics Trail Tune, 210x55mm, S2: 400lbs, S3: 450lbs, S4: 500bs, S5: 550lbs, S6: 600lbs

Drivetrain

ShiftersShimano SLX, M7100, 12spd
Rear derailleurShimano SLX, M7100, SGS, 12-speed
CranksetShimano SLX, M7120, 32T ring, 55mm chainline, S2-S3:165mm, S4-S6: 170mm
Bottom bracketShimano, BB-MT801, Threaded
CassetteShimano SLX, CS-M7100, 12-speed, 10-51t
ChainShimano 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

HandlebarDeity, Racepoint, 5-degree upsweep, 9-degree backsweep, 810 width, S2: 25mm rise: S3-S6: 38mm rise
StemDeity, 35mm clamp, 35mm length
SaddleBridge Comp, Hollow Cr-mo rails, S1-S2: 155mm, S3-S6: 143mm
SeatpostPNW 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
RimsRoval Traverse, hookless alloy, 30mm inner width, tubeless ready, Front: 29, Rear: 27.5
SpokesSapim Force
Front tireButcher, GRID TRAIL casing, GRIPTON® T9 compound, 2Bliss Ready, 29x2.3"
Rear tireEliminator, GRID GRAVITY casing, GRIPTON® T9/T7 compound, 2Bliss Ready, 27.5x2.3"

Geometry · S2

Seat tube385 mm
Effective top tube574 mm
Head tube100 mm
Head-tube angle64°
Seat-tube angle76.5°
Chainstay / rear center432 mm
Wheelbase1186 mm
Bottom-bracket drop35 mm
Bottom-bracket height340 mm
Reach420 mm
Stack621 mm
Standover height751 mm
Fork offset / rake44 mm
Front center755 mm
Trail134 mm
Fork length / axle-to-crown573 mm
Crank length165 mm
Stem length35 mm
Handlebar width810 mm

Geometry · S3

Seat tube405 mm
Effective top tube596 mm
Head tube110 mm
Head-tube angle64°
Seat-tube angle76.5°
Chainstay / rear center432 mm
Wheelbase1216 mm
Bottom-bracket drop35 mm
Bottom-bracket height340 mm
Reach445 mm
Stack630 mm
Standover height745 mm
Fork offset / rake44 mm
Front center785 mm
Trail134 mm
Fork length / axle-to-crown573 mm
Crank length165 mm
Stem length35 mm
Handlebar width810 mm

Geometry · S4

Seat tube425 mm
Effective top tube625 mm
Head tube125 mm
Head-tube angle64°
Seat-tube angle76°
Chainstay / rear center432 mm
Wheelbase1247 mm
Bottom-bracket drop35 mm
Bottom-bracket height340 mm
Reach470 mm
Stack644 mm
Standover height745 mm
Fork offset / rake44 mm
Front center816 mm
Trail134 mm
Fork length / axle-to-crown573 mm
Crank length170 mm
Stem length35 mm
Handlebar width810 mm

Geometry · S5

Seat tube445 mm
Effective top tube649 mm
Head tube140 mm
Head-tube angle64°
Seat-tube angle76°
Chainstay / rear center442 mm
Wheelbase1288 mm
Bottom-bracket drop35 mm
Bottom-bracket height340 mm
Reach495 mm
Stack657 mm
Standover height745 mm
Fork offset / rake44 mm
Front center848 mm
Trail134 mm
Fork length / axle-to-crown573 mm
Crank length170 mm
Stem length35 mm
Handlebar width810 mm

Geometry · S6

Seat tube465 mm
Effective top tube678 mm
Head tube155 mm
Head-tube angle64°
Seat-tube angle76°
Chainstay / rear center442 mm
Wheelbase1325 mm
Bottom-bracket drop35 mm
Bottom-bracket height340 mm
Reach525 mm
Stack671 mm
Standover height751 mm
Fork offset / rake44 mm
Front center884 mm
Trail134 mm
Fork length / axle-to-crown573 mm
Crank length170 mm
Stem length35 mm
Handlebar width810 mm

Manufacturer-published archive data. Confirm exact standards and dimensions before ordering parts or performing service. Generated by Velopedia on October 25, 2026.