2018 Specialized SJ FSR Expert Carbon 29

Frame: 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

Fork: FOX 34 Performance 29/6Fattie, 51mm offset, 15x110mm thru-axle, 150mm of travel

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

Axles: Front: 15x110mm

Rear: 12x148mm

Rims/Wheels: 6Fattie Wheel/Tire System

Tires: Purgatory, GRID casing, 650bx3.0", 60TPI, Aramid folding bead, 2Bliss Ready

Crankset: Truvativ Descendant, aluminum, Boost 148, 170mm crankarm, 30mm spindle

Chainrings: 30T

Bottom Bracket: PF30

Chain: SRAM GX Eagle, 12-speed w/ PowerLock

Rear Derailleur  SRAM GX Eagle, 12-speed

Cassette/Rear Cogs: SRAM GX Eagle, 12-speed, 10-50t

Shifters: SRAM GX Eagle, trigger, 12-speed

Handlebars: Specialized Trail, 7050 alloy, 8-degree backsweep, 6-degree upsweep, 27mm rise, 780mm, 31.8mm clamp

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

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

Brakes: SRAM Guide R, hydraulic disc, organic pads, Guide S4 4-piston caliper, Front: 200/180mm rotor; Rear: 180/160mm rotor

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

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

After one ride on the Stumpjumper Expert 6Fattie, you'll never be merely "riding trail" again. It's a bold statement to make, but the increase in traction, control, and floatation that our 6Fattie Wheel/Tire System provides is nothing short of revolutionary. And then, of course, there's the rest of the bike.

It features our FACT 9m carbon fiber for the bulk of the construction in order to provide an ultra-lightweight, strong, and stiff frame. The carbon molding process also allowed us to revolutionize how you carry your trail essentials with the revolutionary 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.

Then there's our 6Fattie Wheel/Tire System that takes 650b wheels and wraps them in 650bx3.0" tires to provide a drastic, life-changing level of traction, control, and floatation. Impressively, 6Fattie pulls this off without sacrificing anything to climbing prowess. This system also allows you the opportunity to toggle between 29-inch wheels (not included) and 6Fattie wheels, allowing the ultimate in configuration options for the trail at hand. Further improving the ride, you'll also find an aggressive, trail-eating geometry that features ridiculously short chainstays, a roomy top tube, a low bottom bracket, a slacked out front end, and our proprietary Rx Trail Tune at the shock.

And when you factor in a build spec that has some of SRAM's best performing and durable components, you have a bike that will have you never looking back—unless it's to see your buddies eating your dust.

- FACT 9m carbon fiber Trail Chassis with Stumpjumper FSR M5 alloy rear end blends stiffness with light weight to form the pinnacle of efficiency, while fully enclosed cable routing and an integrated SWAT Door create exceptional handling and zero-hassle storage.

- The FOX 34 Performance fork features 150mm of plush travel to take on big hits and bumpy terrain with supreme confidence and efficiency.

- SRAM's 12-speed GX Eagle drivetrain, with a Truvativ Descendent crank, features an ultra-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.