Bicycle Archive · Specification report

2018 Specialized Stumpjumper Comp Carbon 6Fattie/29

Velopedia Archive ID 900003885

Overview

Model year	2018
Brand	Specialized
Model	Stumpjumper Comp Carbon 6Fattie/29
Bicycle type	Mountain
Archive ID	900003885
Original MSRP	$3,500.00
Colors	Gloss Carbon/Chameleon; Gloss Gallardo Orange/Carbon/Black
Sizes	S; M; L; XL

Frameset

Frame construction	FACT 9m carbon front chassis w/ Specialized M5 Aluminum rear end, 29/6Fattie Trail Geometry, SWAT™ Door integration, PF30 BB, fully enclosed internal cable routing, ManFu link, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 135mm of travel
Frame material	Carbon Fiber
Fork	RockShox Revelation RC, Solo Air, rebound / low speed compression adjust, tapered steerer, 51mm offset, 15mm Maxle® Stealth thru-axle, 15x110mm Boost™, 150mm of travel
Rear shock	RockShox Monarch RT, Rx Trail Tune, AUTOSAG, rebound and 2-position compression adjust, 197x48mm

Drivetrain

Shifters	SRAM GX, trigger, 11-speed
Rear derailleur	SRAM GX, long cage, 11-speed
Crankset	Race Face Aeffect, PF30; chainrings: Steel, 28T
Bottom bracket	Race Face PF30
Cassette	SRAM XG 1150, 11-speed, 10-42t
Chain	KMC X11, 11-speed w/ Missing Link™
Pedals	Specialized Platform, Cr-Mo, 9/16" spindle

Brakes

Brakes	(F) SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 200/180mm rotor / (R) SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180/160mm rotor

Cockpit & contact points

Handlebar	Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
Stem	Specialized Trail, 3D forged alloy, 4-bolt, 6-degree rise
Saddle	Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm
Seatpost	Command Post IRcc, 12-position micro-height adjustable, alien head design, bottom mount cable routing, remote SRL lever, 30.9mm, S: 100mm, M/L/XL: 125mm of travel

Wheels & tires

Hubs	(F) Specialized, sealed cartridge bearings, 15x110mm spacing, 24h / (R) Specialized, sealed cartridge bearings, 12x148mm thru-axle, 28h
Rims	Roval Traverse 27.5, hookless alloy, 38mm inner width, tubeless ready, 24/28h
Spokes	DT Swiss Industry, stainless, 3-cross, 2.0"
Front tire	Purgatory, GRID casing, Gripton compound, 2Bliss Ready, 27.5 x 3.0"
Rear tire	Slaughter, GRID casing, Gripton compound, 2Bliss Ready, 27.5 x 2.8"

Geometry · S

Seat tube	396 mm
Effective top tube	563 mm
Head tube	125 mm
Head-tube angle	67°
Seat-tube angle	74°
Chainstay / rear center	437 mm
Wheelbase	1122 mm
Bottom-bracket drop	33 mm
Reach	386 mm
Stack	618 mm
Standover height	754 mm
Fork offset / rake	51 mm
Front center	687 mm
Trail	96.5 mm
Fork length / axle-to-crown	560 mm
Seatpost length	390 mm
Crank length	170 mm
Stem length	45 mm
Handlebar width	780 mm

Geometry · M

Seat tube	430 mm
Effective top tube	590 mm
Head tube	145 mm
Head-tube angle	67°
Seat-tube angle	74°
Chainstay / rear center	437 mm
Wheelbase	1149 mm
Bottom-bracket drop	33 mm
Reach	413 mm
Stack	618 mm
Standover height	761 mm
Fork offset / rake	51 mm
Front center	714 mm
Trail	96.5 mm
Fork length / axle-to-crown	560 mm
Seatpost length	430 mm
Crank length	170 mm
Stem length	60 mm
Handlebar width	780 mm

Geometry · L

Seat tube	468 mm
Effective top tube	616 mm
Head tube	95 mm
Head-tube angle	67°
Seat-tube angle	74°
Chainstay / rear center	437 mm
Wheelbase	1179 mm
Bottom-bracket drop	33 mm
Reach	431 mm
Stack	646 mm
Standover height	770 mm
Fork offset / rake	51 mm
Front center	744 mm
Trail	96.5 mm
Fork length / axle-to-crown	560 mm
Seatpost length	430 mm
Crank length	170 mm
Stem length	60 mm
Handlebar width	780 mm

Geometry · XL

Seat tube	523 mm
Effective top tube	648 mm
Head tube	95 mm
Head-tube angle	67°
Seat-tube angle	74°
Chainstay / rear center	437 mm
Wheelbase	1212 mm
Bottom-bracket drop	33 mm
Reach	457 mm
Stack	664 mm
Standover height	777 mm
Fork offset / rake	51 mm
Front center	777 mm
Trail	96.5 mm
Fork length / axle-to-crown	560 mm
Seatpost length	430 mm
Crank length	170 mm
Stem length	60 mm
Handlebar width	780 mm

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