2017 Trek Bikes Stache 9.8 Base

	S	M	L	XL
Stack	630mm	630mm	639mm	649mm
Reach	393mm	422mm	451mm	470mm
Stack to Reach Ratio	1.6:1	1.49:1	1.42:1	1.38:1
Seat Tube Length, C-T	394mm	419mm	470mm	521mm
Seat Tube Length, Effective Unknown	735mm	735mm	735mm	735mm
Top Tube Length, Effective/Horizontal Unknown	580mm	608mm	641mm	664mm
Top Tube Slope	26.1deg	22.7deg	17.9deg	14deg
Head Tube Angle	68.4deg	68.4deg	68.4deg	68.4deg
Seat Tube Angle	68.4deg	68.4deg	68.4deg	68.4deg
Head Tube Length	90mm	90mm	100mm	110mm
Bottom Bracket Drop	72mm	72mm	72mm	72mm
Bottom Bracket Height	315.2mm	315.2mm	315.2mm	315.2mm
Chainstay Length	420mm	420mm	420mm	420mm
Chainstay Length Horizontal	413.8mm	413.8mm	413.8mm	413.8mm
Front-Center	675.1mm	701.9mm	734.8mm	756.7mm
Front-Center Horizontal	671.2mm	698.2mm	731.2mm	753.2mm
Wheelbase	1085mm	1112mm	1145mm	1167mm
Fork Offset/Rake	51mm	51mm	51mm	51mm
Trail	98.5mm very high	98.5mm very high	98.5mm very high	98.5mm very high
Mechanical Trail	91.5mm	91.5mm	91.5mm	91.5mm
Wheel Flop	33.7mm	33.7mm	33.7mm	33.7mm
Standover Height	77.8mm	79.1mm	79.2mm	79.2mm
Tire to Pedal Spindle	117.9mm 170 mm cranks	144.7mm 170 mm cranks	177.6mm 170 mm cranks	199.5mm 170 mm cranks
Pedal Spindle to Ground Clearance	145.2mm 170 mm cranks	145.2mm 170 mm cranks	145.2mm 170 mm cranks	145.2mm 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/mountain-bikes/trail-mountain-bikes/stache/stache-9-8/p/17249/

Geometry