Inspection
Frame condition
Inspect the frame, fork, welds, and high-stress areas for cracks, dents, or prior repairs.
Specialized
2018 Specialized Stumpjumper Comp Alloy 650b
Previous used estimate
$848 - $873
Actual value depends on condition, size, and local demand.
Value Guide market data · 2018 Specialized Stumpjumper Comp Alloy 650b
12-month projected trend
7%
Direction and magnitude, not judgment
vs. category average
1%
Drops faster than category avg
Price over time - 2018 Specialized Stumpjumper Comp Alloy 650b
Values based on actual sales data. Enter your bike's specifics to get a precise valuation.
All Stumpjumper model years
Overview
About this bike
When you need to blend ruggedness, efficiency, and downright nimbleness into one trail bike, it's pretty damn hard to beat the confident construction of an alloy frame like the Stumpjumper Comp Alloy 650b. It features an M5 alloy construction that's lightweight, durable, and plenty stiff and compliant, while SRAM's most durable one-by components have been hand-selected to ensure that you get the most performance over rugged terrain possible. Furthering this, you'll also find a FOX FLOAT Rhythm fork with 150mm of travel up front, a custom-tuned RockShox Monarch RT3 at the rear, and powerful SRAM Guide R brakes. And when you factor in our proprietary Rx Trail Tune at the shock, plus an aggressive, trail-eating geometry that features absurdly short chainstays, a roomy top tube, a low bottom bracket, and a slacked out front end, you get a nimble trail bike that you can be confident in, season after season. - M5 alloy Trail Chassis with Stumpjumper FSR rear end blends durability, stiffness, and light weight, while 150mm of travel Trail Geometry provide more than capable handling. - The FOX 34 fork features 150mm of plush travel to take on big hits and bumpy terrain with supreme confidence and efficiency. - SRAM's 11-speed GX Eagle drivetrain, with Race Face Aeffect crank, features a wide gear range that delivers climbing and descending efficiency in spades. On top of this, the one-by setup is notorious for being next to impossible to drop a chain with, plus it provides a significant weight savings in comparison to a standard two-by setup.
Specifications
- Category
- Mountain
- Component Fork
- FOX FLOAT Rhythm 34 27.5, 44mm offset, 2-position, tapered alloy steerer, 15x110mm Boost, 150mm of travel
- Component Hubs
- Front: Stout Pro 110 disc Rear: Specialized disc
- Component Stem
- Specialized Trail, 3D forged alloy, 4-bolt, 6-degree rise
- Product Family
- Stumpjumper
- Component Axles
- Front: 15x110mm Rear: 12x148mm thru-axle
- Component Chain
- KMC X11, 11-speed w/ Missing Link
- Component Frame
- Specialized M5 Aluminum, 650b Trail Geometry, PF30 BB, internal cable routing, ManFu link, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel
- Component Tires
- Butcher, GRID casing, Gripton, 2Bliss Ready, 650b x 2.6"
- Component Brakes
- SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, Front: 200/180mm rotor; Rear: 180/160mm rotor
- Component Saddle
- Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm
- Component Crankset
- Race Face Aeffect, PF30
- Component Shifters
- SRAM GX, trigger, 11-speed
- Component Handlebar
- Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
- Component Seat Post
- 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
- Component Chainrings
- Steel, 30T
- Component Rear Shock
- RockShox Monarch RT, Rx Trail Tune, AUTOSAG, rebound and 2-position compression adjust, 197x48mm
- Component Tape Grips
- Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
- Component Bottom Bracket
- Race Face PF30
- Component Rear Derailleur
- SRAM GX, long cage, 11-speed
- Rear Shock
- RockShox Monarch RT, Rx Trail Tune, AUTOSAG, rebound and 2-position compression adjust, 197x48mm
- Hubs
- Front: Stout Pro 110 disc Rear: Specialized disc
- Tires
- Butcher, GRID casing, Gripton, 2Bliss Ready, 650b x 2.6"
- Crankset
- Race Face Aeffect, PF30
- Bottom Bracket
- Race Face PF30
- Chain
- KMC X11, 11-speed w/ Missing Link
- Saddle
- Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm
- Handlebar
- Specialized, 6061 alloy, 6-degree upsweep, 8-degree backsweep, 27mm rise, 780mm width
- Rear Derailleur
- SRAM GX, long cage, 11-speed
- Stem
- Specialized Trail, 3D forged alloy, 4-bolt, 6-degree rise
- Axles
- Front: 15x110mm Rear: 12x148mm thru-axle
- Brakes
- SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, Front: 200/180mm rotor; Rear: 180/160mm rotor
- Chainrings
- Steel, 30T
- Fork
- FOX FLOAT Rhythm 34 27.5, 44mm offset, 2-position, tapered alloy steerer, 15x110mm Boost, 150mm of travel
- Frame
- Specialized M5 Aluminum, 650b Trail Geometry, PF30 BB, internal cable routing, ManFu link, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel
- Seat Post
- 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
- Shifters
- SRAM GX, trigger, 11-speed
- Tape/Grips
- Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness
What to check when buying used
Inspection
Drivetrain wear
Check chain stretch, cassette teeth, chainrings, and shifting under load before negotiating price.
Inspection
Service history
Ask for service records covering bearings, brakes, drivetrain, and any frame or fork warranty work.
Inspection
Suspension service
Confirm fork and rear shock service intervals and check pivot bearings for play.