Stumpjumper versions

Short Travel (ST) Stumpjumper

Alloy frame, available with 27.5" or 29" wheels. 130mm fork travel and 120-130mm rear (depending on wheel size). Snappy and nimble for a wide variety of trail options.

Stumpjumper

Carbon or alloy frame, available with 27.5" or 29" wheels. 150mm fork travel and 140-150mm rear (depending on wheel size). A fast and planted bike.

Stumpjumper EVO

Carbon or alloy frame, available with 27.5" or 29" wheels. 150mm fork travel and 140-150mm rear (depending on wheel size).  Slacker angles for gravity riding.

Sidearm frame

An improved design improves frame stiffness and decreases weight. The Stumpjumper is supple over small bumps, yet it possesses a firm mid-stroke and exceptional bottom-out support.

Flip Chip

If you want sharper handling and a bit more clearance, your Specialized retailer can help you by adjusting the Flip Chip to the high position—angles get half a degree steeper and the bottom bracket comes up 6mm.

See the chart below for how the Flip Chip position changes the BB height and head tube angle for the different Stumpjumper verisons.

Model 

Wheel/tire

Shock travel

Shock Extension*

Shock Stroke

Fork Travel

BB Height

Head Tube Angle*

SJ 29 ST29 x 2.3120115 / 118190 x 42.5130333 / 33867.5 / 68

SJ 27.5 ST

27.5 x 2.3130115 / 118190 x 45130325 / 33166.5 / 67
SJ 2929 x 2.614095 / 98210 x 50150342 / 34766.5 / 67
SJ 27.527.5 x 2.615095 / 98210 x 52.5150336 / 34265.5 / 66
SJ EVO 2929 x 2.314095 / 98210 x 50150328 / 33463.5 / 64
SJ EVO 27.527.5 x 2.615095 / 98210 x 25.5150324 / 33063.5 / 64

* The shock extension length, bottom bracket (BB) height, and head tube angle all have two setting based on the Flip Chip position. The stock configuration for the Flip Chip is in the lower position (highlighted in Bold above).