VelopediaBicycle Archive · Specification report

2018 Specialized Stumpjumper Expert 29

Velopedia Archive ID 900003383

Overview

Model year2018
BrandSpecialized
ModelStumpjumper Expert 29
Bicycle typeMountain
Archive ID900003383
Original MSRP$5,000.00
ColorsGloss/Storm Grey/Rocket Red; Satin/Rocket Red/Black
SizesS; M; L; XL

Frameset

Frame constructionFACT 11m, full carbon chassis and rear end, asymmetrical design, 29 Trail Geometry, SWAT™ Door integration, threaded BB, fully enclosed internal cable routing, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 140mm of travel
Frame materialCarbon Fiber
ForkRockShox Pike RC, DebonAir, rebound/low-speed compression adjust, tapered steerer, 51mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 150mm of travel
Rear shockRockShox Deluxe RT3, Rx Trail Tune, rebound and 3-position compression adjust, 210x50mm

Drivetrain

ShiftersSRAM GX Eagle, trigger, 12-speed
Rear derailleurSRAM GX Eagle, 12-speed
CranksetTruvativ Descendant, aluminum, Boost™ 148, 170mm crankarm, 24mm spindle; chainrings: 30T
Bottom bracketSRAM GXP
CassetteSRAM GX Eagle, 12-speed, 10-50t
ChainSRAM GX Eagle, 12-speed w/ PowerLock®
PedalsSpecialized Dirt

Brakes

Brakes(F) SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200mm rotor / (R) SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180mm rotor

Cockpit & contact points

HandlebarSpecialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp
StemSpecialized Trail, forged alloy, 4-bolt, 5mm rise, 40mm
SaddleBody Geometry Phenom Comp, Adaptive Edge design, hollow Cr-Mo rails, 143mm
SeatpostCommand 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

Wheels & tires

Hubs(F) Specialized, sealed cartridge bearings, 15x110mm spacing, 28h / (R) Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h
RimsRoval Traverse Carbon 29, hookless carbon, 30mm inner width, 28h, tubeless ready, hand-built
SpokesDT Swiss Industry
Front tireButcher, GRID casing, GRIPTON® compound, 2Bliss Ready, 29x2.6"
Rear tirePurgatory, GRID casing, GRIPTON® compound, 2Bliss ready, 29 x2.6"

Geometry · S

Seat tube380 mm
Effective top tube572 mm
Head tube95 mm
Head-tube angle66.5°
Seat-tube angle74.8°
Chainstay / rear center437 mm
Wheelbase1149 mm
Bottom-bracket drop33 mm
Bottom-bracket height342 mm
Reach405 mm
Stack614 mm
Standover height747 mm
Fork offset / rake51 mm
Front center714 mm
Trail107 mm
Fork length / axle-to-crown560 mm
Seatpost length369 mm
Crank length170 mm
Stem length40 mm
Handlebar width780 mm

Geometry · M

Seat tube410 mm
Effective top tube595 mm
Head tube95 mm
Head-tube angle66.5°
Seat-tube angle74.5°
Chainstay / rear center437 mm
Wheelbase1169 mm
Bottom-bracket drop33 mm
Bottom-bracket height342 mm
Reach425 mm
Stack614 mm
Standover height750 mm
Fork offset / rake51 mm
Front center734 mm
Trail107 mm
Fork length / axle-to-crown560 mm
Seatpost length429 mm
Crank length170 mm
Stem length40 mm
Handlebar width780 mm

Geometry · L

Seat tube455 mm
Effective top tube628 mm
Head tube125 mm
Head-tube angle66.5°
Seat-tube angle74.1°
Chainstay / rear center437 mm
Wheelbase1201 mm
Bottom-bracket drop33 mm
Bottom-bracket height342 mm
Reach445 mm
Stack641 mm
Standover height762 mm
Fork offset / rake51 mm
Front center766 mm
Trail107 mm
Fork length / axle-to-crown560 mm
Seatpost length429 mm
Crank length170 mm
Stem length50 mm
Handlebar width780 mm

Geometry · XL

Seat tube505 mm
Effective top tube662 mm
Head tube140 mm
Head-tube angle66.5°
Seat-tube angle73.7°
Chainstay / rear center437 mm
Wheelbase1232 mm
Bottom-bracket drop33 mm
Bottom-bracket height342 mm
Reach470 mm
Stack656 mm
Standover height775 mm
Fork offset / rake51 mm
Front center797 mm
Trail107 mm
Fork length / axle-to-crown560 mm
Seatpost length429 mm
Crank length170 mm
Stem length50 mm
Handlebar width780 mm

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