2024 Trek Bikes speed concept Base

	S	M	L	XL	XL
Stack	492mm	517mm	541mm	565mm	565mm
Reach	390mm	416mm	426mm	445mm	445mm
Stack to Reach Ratio	1.26:1	1.24:1	1.27:1	1.27:1	1.27:1
Seat Tube Length, C-TTT	499mm	525mm	549mm	574mm	574mm
Top Tube Length, Effective/Horizontal Center	495mm	518mm	541mm	565mm	565mm
Top Tube Slope	-1.8deg	-1.7deg	-1.6deg	-1.6deg	-1.6deg
Head Tube Angle	72.2deg	72.5deg	72.5deg	72.5deg	72.5deg
Seat Tube Angle	78deg	78deg	78deg	78deg	78deg
Head Tube Length	65mm	90mm	115mm	140mm	140mm
Bottom Bracket Drop	80mm	80mm	80mm	80mm	80mm
Bottom Bracket Height	263mm	263mm	263mm	263mm	263mm
Chainstay Length	410mm	410mm	410mm	410mm	410mm
Chainstay Length Horizontal	402.1mm	402.1mm	402.1mm	402.1mm	402.1mm
Front-Center	570.5mm	598.3mm	623mm	649.8mm	649.8mm
Front-Center Horizontal	564.9mm	592.9mm	617.9mm	644.9mm	644.9mm
Wheelbase	967mm	995mm	1020mm	1047mm	1047mm
Fork Offset/Rake	45mm	45mm	45mm	45mm	45mm
Trail	62.9mm mid/neutral	61mm mid/neutral	61mm mid/neutral	61mm mid/neutral	61mm mid/neutral
Mechanical Trail	59.9mm	58.1mm	58.1mm	58.1mm	58.1mm
Wheel Flop	18.3mm	17.5mm	17.5mm	17.5mm	17.5mm
Standover Height	760mm	785mm	808mm	831mm	831mm
Tire to Pedal Spindle	57.5mm 170 mm cranks	85.3mm 170 mm cranks	110mm 170 mm cranks	136.8mm 170 mm cranks	136.8mm 170 mm cranks
Pedal Spindle to Ground Clearance	93mm 170 mm cranks	93mm 170 mm cranks	93mm 170 mm cranks	93mm 170 mm cranks	93mm 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.trekbikes.com/us/en_US/bikes/road-bikes/triathlon-bikes/speed-concept/speed-concept-slr-7-axs/p/41499/?colorCode=red_black, Na

Geometry