2018 Specialized Bicycles Stumpjumper Comp Alloy 27.5

	S	M	L	XL
Stack	590mm	599mm	608mm	617mm
Reach	388mm	414mm	442mm	464mm
Stack to Reach Ratio	1.52:1	1.45:1	1.38:1	1.33:1
Seat Tube Length, Unknown	396mm	430mm	468mm	523mm
Top Tube Length, Effective/Horizontal Center	553mm	585mm	618mm	646mm
Top Tube Slope	22.8deg	19.2deg	15.5deg	10.6deg
Head Tube Angle	67deg	67deg	67deg	67deg
Seat Tube Angle	74deg	74deg	74deg	74deg
Head Tube Length	105mm	115mm	125mm	95mm
Bottom Bracket Drop	18mm	18mm	18mm	18mm
Bottom Bracket Height	340mm	340mm	340mm	340mm
Chainstay Length	420mm	420mm	420mm	420mm
Chainstay Length Horizontal	419.6mm	419.6mm	419.6mm	419.6mm
Front-Center	677mm	706mm	738mm	764mm
Front-Center Horizontal	676.4mm	706.4mm	738.4mm	764.4mm
Wheelbase	1096mm	1126mm	1158mm	1184mm
Fork Offset/Rake	46mm	46mm	46mm	46mm
Fork Length, Unknown	542mm	542mm	542mm	542mm
Trail	102mm very high	102mm very high	102mm very high	102mm very high
Mechanical Trail	93.9mm	93.9mm	93.9mm	93.9mm
Wheel Flop	36.7mm	36.7mm	36.7mm	36.7mm
Standover Height	742mm	748mm	762mm	774mm
Tire to Pedal Spindle	149mm 170 mm cranks	178mm 170 mm cranks	210mm 170 mm cranks	236mm 170 mm cranks
Pedal Spindle to Ground Clearance	170mm 170 mm cranks	170mm 170 mm cranks	170mm 170 mm cranks	170mm 170 mm cranks

Very Upright

Somewhat Upright

Average

Somewhat Aggressive

Very Aggressive

The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.

Category Trend

Source:https://www.specialized.com/us/en/stumpjumper-comp-alloy-27-5/p/153985

Geometry