2020 Specialized Bicycles Demo Race

	S2	S3	S4
Stack	633mm	633mm	633mm
Reach	425mm	445mm	465mm
Stack to Reach Ratio	1.49:1	1.42:1	1.36:1
Seat Tube Length, C-T	394mm	420mm	420mm
Top Tube Length, Effective/Horizontal Center	563mm	600mm	620mm
Top Tube Slope	26deg	22.5deg	21.7deg
Head Tube Angle	62.7deg	62.7deg	62.7deg
Seat Tube Angle	77.7deg	76.3deg	76.3deg
Head Tube Length	105mm	105mm	105mm
Bottom Bracket Drop	25mm	25mm	25mm
Bottom Bracket Height	352mm	352mm	352mm
Chainstay Length	450mm	450mm	450mm
Chainstay Length Horizontal	449.3mm	449.3mm	449.3mm
Front-Center	802mm	822mm	842mm
Front-Center Horizontal	801.7mm	821.7mm	841.7mm
Wheelbase	1251mm	1271mm	1291mm
Fork Offset/Rake	56mm	56mm	56mm
Fork Length (Axle-To-Crown)	607mm	607mm	607mm
Trail	131.6mm very high	131.6mm very high	131.6mm very high
Mechanical Trail	116.9mm	116.9mm	116.9mm
Wheel Flop	53.6mm	53.6mm	53.6mm
Standover Height	760mm	760mm	760mm
Tire to Pedal Spindle	260mm 165 mm cranks	280mm 165 mm cranks	300mm 165 mm cranks
Pedal Spindle to Ground Clearance	187mm 165 mm cranks	187mm 165 mm cranks	187mm 165 mm cranks

Published Sizing Recommendations

Height

5 ft 2 in

5 ft 9 in

5 ft 5 in

6 ft 0 in

5 ft 8 in

6 ft 4 in

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/demo-race-29/p/154301?color=226087-154301