2023 Trek Bikes FX Sport 4

Category
Fitness
Design
Flat Bar, Rigid, non-suspension corrected
Frame
Carbon/Composite
Fork
Carbon/Composite
Features
Disc brake
Somewhat upright stack and reachvs category
Somewhat upright stack and reachvs category
Somewhat upright stack and reachvs category
Somewhat upright stack and reachvs category

Geometry

S
M
L
XL
Stack
568mm
594mm
620mm
648mm
Reach
385mm
393mm
400mm
410mm
Stack to Reach Ratio
1.48:1
1.51:1
1.55:1
1.58:1
Seat Tube Length, C-T
406mm
457mm
508mm
559mm
Top Tube Length, Effective/Horizontal Center
543mm
563mm
583mm
613mm
Top Tube Slope
19.7deg
16.6deg
13.7deg
11.2deg
Head Tube Angle
70.5deg
71deg
71.5deg
72.5deg
Seat Tube Angle
74.5deg
74deg
73.5deg
72.5deg
Head Tube Length
140mm
165mm
190mm
215mm
Bottom Bracket Drop
65mm
65mm
65mm
65mm
Bottom Bracket Height
286mm
286mm
286mm
286mm
Chainstay Length
442mm
442mm
442mm
442mm
Chainstay Length Horizontal
437.2mm
437.2mm
437.2mm
437.2mm
Front-Center
620.2mm
631.2mm
641.1mm
648.1mm
Front-Center Horizontal
616.8mm
627.8mm
637.8mm
644.8mm
Wheelbase
1054mm
1065mm
1075mm
1082mm
Fork Offset/Rake
50mm
50mm
50mm
50mm
Trail
71.3mm
high
68mm
high
64.7mm
mid/​neutral
58.2mm
mid/​neutral
Mechanical Trail
67.2mm
64.3mm
61.4mm
55.6mm
Wheel Flop
22.4mm
20.9mm
19.5mm
16.7mm
Standover Height
751mm
787mm
812mm
848mm
Tire to Pedal Spindle
99.2mm
170 mm cranks
105.2mm
175 mm cranks
115.1mm
175 mm cranks
122.1mm
175 mm cranks
Pedal Spindle to Ground Clearance
116mm
170 mm cranks
111mm
175 mm cranks
111mm
175 mm cranks
111mm
175 mm cranks

4 Build

S
M
L
XL
Wheel Size
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
700C/29 in
622 mm BSD
Tire Width
40mm
40mm
40mm
40mm
Tire Width Max
42mm
42mm
42mm
42mm
Tire Outer Diameter
702mm
702mm
702mm
702mm
Bike Length with Tires
1756mm
1767mm
1777mm
1784mm
Crank Length
170mm
175mm
175mm
175mm
Handlebar Width
600mm
660mm
660mm
660mm
Stem Length
100mm
100mm
110mm
110mm
Stem Angle
7deg
7deg
7deg
7deg

Published Sizing Recommendations

Height
155 cm
to
165 cm
165 cm
to
175 cm
175 cm
to
186 cm
186 cm
to
197 cm

Stack and Reach vs. Category Trend

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
Fitness
Source:https://www.trekbikes.com/us/en_US/bikes/hybrid-bikes/fitness-bikes/fx/fx-sport-4/p/35785/?colorCode=white