2020 Trek Bikes Speed Concept Base

	S	M	L	XL
Stack	492mm	517mm	541mm	565mm
Reach	390mm	408mm	426mm	445mm
Stack to Reach Ratio	1.26:1	1.27:1	1.27:1	1.27:1
Seat Tube Length, C-T	503mm	529mm	553mm	578mm
Top Tube Length, Effective/Horizontal HT Top	495mm	518mm	541mm	565mm
Top Tube Slope	0deg	0deg	0deg	0deg
Head Tube Angle	72.2deg	72.5deg	72.5deg	72.5deg
Seat Tube Angle	78deg	78deg	78deg	78deg
Head Tube Length	65mm	90mm	115mm	140mm
Bottom Bracket Drop	80mm	80mm	80mm	80mm
Bottom Bracket Height	256mm	256mm	256mm	256mm
Chainstay Length	400mm	400mm	400mm	400mm
Chainstay Length Horizontal	391.9mm	391.9mm	391.9mm	391.9mm
Front-Center	574.7mm	598.5mm	623.2mm	650mm
Front-Center Horizontal	569.1mm	593.1mm	618.1mm	645.1mm
Wheelbase	961mm	985mm	1010mm	1037mm
Fork Offset/Rake	45mm	45mm	45mm	45mm
Trail	60.6mm mid/neutral	58.8mm mid/neutral	58.8mm mid/neutral	58.8mm mid/neutral
Mechanical Trail	57.7mm	56mm	56mm	56mm
Wheel Flop	17.6mm	16.9mm	16.9mm	16.9mm
Standover Height	750mm	775mm	799mm	823mm
Tire to Pedal Spindle	73.7mm 165 mm cranks	92.5mm 170 mm cranks	114.7mm 172.5 mm cranks	139mm 175 mm cranks
Pedal Spindle to Ground Clearance	91mm 165 mm cranks	86mm 170 mm cranks	83.5mm 172.5 mm cranks	81mm 175 mm cranks

Published Sizing Recommendations

Height	154 cm to 170 cm	164 cm to 177 cm	184 cm to 187 cm	185 cm to 198 cm
PBH	72 cm to 80 cm	77 cm to 83 cm	82 cm to 88 cm	87 cm to 93 cm

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.

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Source:https://www.trekbikes.com/us/en_US/bikes/road-bikes/triathlon-bikes/speed-concept/speed-concept/p/22054/?colorCode=black