Name: 2025 Trek Bikes Powerfly FS 4
Brand: Trek Bikes

	Medium
Stack	1597.7mm
Reach	45mm
Stack to Reach Ratio	35.5:1
Seat Tube Length, C-T	40mm
Top Tube Length, Effective/Horizontal Center	59.5mm
Top Tube Slope	87.9deg
Head Tube Angle	66deg
Seat Tube Angle	71.3deg
Head Tube Length	11mm
Bottom Bracket Drop	4.5mm
Bottom Bracket Height	370mm
Chainstay Length	46.1mm
Chainstay Length Horizontal	45.9mm
Front-Center	76.6mm
Front-Center Horizontal	76.4mm
Wheelbase	122.3mm
Fork Offset/Rake	4.4mm
Trail	161.9mm very high
Mechanical Trail	147.9mm
Wheel Flop	60.2mm
Standover Height	78mm
Tire to Pedal Spindle	-467.9mm 170 mm cranks
Pedal Spindle to Ground Clearance	200mm 170 mm cranks

	Medium
Wheel Size	700C/29 in 622 mm BSD
Tire Width	2.5in
Tire Width Max	2.5in
Tire Outer Diameter	749mm
Bike Length with Tires	871.3mm

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.

Learn more about the Upright/Aggressive Scale

Category Trend

Full-suspension Trail MTB

Source:https://www.trekbikes.com/gb/en_GB/bikes/mountain-bikes/electric-mountain-bikes/powerfly/powerfly-full-suspension/powerfly-fs-4-800wh-gen-4/p/57351/?colorCode=grey_black

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2025 Trek Bikes Powerfly FS 4

Geometry

4 Build

Stack and Reach vs. Category Trend