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Stumpjumper FSR Expert Carbon 650b

2017 Stumpjumper FSR Expert Carbon 650b

If your idea of trail riding follows the philosophy of "go big or go home," you simply can't beat the agility and responsiveness that a 650b provides. Knowing this, we built our Stumpjumper FSR Expert Carbon 650b to be the ultimate all-rounder trail bike. It features a workhorse SRAM one-by groupset and the no-holds-barred Guide R hydraulic disc brakes to round out a build that places an equal focus on durability and efficiency. At the frame, you'll find our FACT 9m carbon fibre Trail chassis with an M5 alloy rear end that creates a lightweight, strong, and stiff construction. The carbon moulding process also allowed us to revolutionise how you carry your trail essentials with the all-new SWAT™ Door found at the down tube. This compartment will fit a tube, a tool, and pump without rattling or compromising the structural integrity of the frame. And when you factor in our proprietary Rx Trail Tune at the shock, plus an aggressive, trail-eating geometry that features ridiculously short chainstays, a roomy top tube, a low bottom bracket, and a slacked out front end, you truly do get a bike that refuses to compromise.

Technical Specifications

FRAMESET

FRAME

FACT 9m, carbon front chassis, M5 alloy rear end, Trail Geometry, SWAT™ Door integration, PF30 BB, fully enclosed internal cable routing, ManFu link, 12x148mm dropouts, sealed cartridge bearing pivots, replaceable derailleur hanger, 150mm of travel

SEAT BINDER

Alloy, 34.9mm

SUSPENSION

FORK

RockShox Pike RC 27.5, Solo Air, compression and rebound adjust, tapered steerer, 15x110mm Maxle Stealth thru-axle, 46mm offset, 150mm travel

REAR SHOCK

RockShox Monarch RT3, Rx Trail Tune, AUTOSAG, rebound and 3-position compression adjust, 197x48mm

WHEELS

FRONT HUB

Roval Traverse, sealed cartridge bearings, 15mm thru-axle, 110mm spacing, 24h

RIMS

Roval Traverse 650, hookless alloy, 29mm inner width, 24/28h, tubeless ready

SPOKES

DT Swiss Revolution

REAR HUB

Roval Traverse, DT Swiss internals, sealed cartridge bearings, SRAM XD driver body, 12mm thru-axle, 148mm spacing, 28h

REAR TYRE

Slaughter, GRID casing, 650x2.3", 60TPI, Aramid folding bead, 2Bliss Ready

FRONT TYRE

Butcher, GRID casing, 650x2.3", 60TPI, Aramid folding bead, 2Bliss Ready

INNER TUBES

Standard, Presta valve

DRIVETRAIN

REAR DERAILLEUR

SRAM X1 Type 2.1, 11-speed

CASSETTE

SRAM XG-1150, 11-speed, 10-42t

SHIFT LEVERS

SRAM GX, 11-speed, trigger

CRANKSET

RaceFace Aeffect,  6000-series alloy, 24mm spindle, 52mm chainline

CHAIN

SRAM PC-1110, 11-speed w/PowerLink

COCKPIT

STEM

Specialized Trail, 3D forged alloy, 4-bolt, 6-degree rise

SADDLE

Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm

GRIPS

Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness

HANDLEBARS

Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 25mm rise, 750mm width, 31.8mm

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 travel

BRAKES

REAR BRAKE

SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, 180/160mm rotor

FRONT BRAKE

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

ACCESSORIES

PEDALS

Resin Test Ride w/toe clips

* Weights based on production painted frames as pictured. Actual weights will vary based on colourway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

SMLXL
Crank Length170MM175MM175MM175MM
Handlebar Width750mm750mm750mm750mm
Stem Length45mm60mm60mm60mm
Saddle Width143mm143mm143mm143mm
Seatpost Length390mm430mm430mm430mm
Seat-Tube Angle74°74°74°74°
Head-Tube Length95mm105mm115mm125mm
Head-Tube Angle67°67°67°67°
Chain-Stay Length420mm420mm420mm420mm
Front-Centre677mm706mm738mm764mm
B-B Drop18mm18mm18mm18mm
Bike Stand-Over Height742mm748mm762mm764mm
Fork Length (full)542mm542mm542mm542mm
Top-Tube Length (horizontal)558mm587mm618mm646mm
Seat-Tube Length396mm430mm468mm523mm
B-B Height (650x2.3")335mm335mm335mm335mm
B-B Height (650x2.6")340mm340mm340mm340mm
Stack590mm599mm608mm617mm
Reach388mm414mm442mm464mm
Trail104mm104mm104mm104mm
Fork Rake/Offset46mm46mm46mm46mm
Wheelbase1096mm1126mm1158mm1184mm
Geometry

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