2023 Trek Bikes FX 3 Disc

	XS	S	M	L	XL	XXL
Stack	537mm	539mm	557mm	586mm	618mm	647mm
Reach	383mm	393mm	397mm	398mm	398mm	392mm
Stack to Reach Ratio	1.4:1	1.37:1	1.4:1	1.47:1	1.55:1	1.65:1
Seat Tube Length, C-T	330mm	381mm	445mm	508mm	572mm	635mm
Top Tube Length, Effective/Horizontal HT Top	527mm	542mm	557mm	571mm	587mm	601mm
Top Tube Slope	25deg	19.2deg	14deg	10.3deg	7.2deg	4.2deg
Head Tube Angle	70deg	70.5deg	71.5deg	71.5deg	72.5deg	72.5deg
Seat Tube Angle	75deg	74.5deg	74deg	73.5deg	73deg	72deg
Head Tube Length	115mm	115mm	130mm	160mm	190mm	220mm
Bottom Bracket Drop	65mm	65mm	65mm	65mm	65mm	65mm
Bottom Bracket Height	278mm	278mm	278mm	278mm	278mm	278mm
Chainstay Length	450mm	450mm	450mm	450mm	450mm	450mm
Chainstay Length Horizontal	445.3mm	445.3mm	445.3mm	445.3mm	445.3mm	445.3mm
Front-Center	611.2mm	617.2mm	618.2mm	628.1mm	628.1mm	630.1mm
Front-Center Horizontal	607.7mm	613.7mm	614.7mm	624.7mm	624.7mm	626.7mm
Wheelbase	1053mm	1059mm	1060mm	1070mm	1070mm	1072mm
Fork Offset/Rake	78mm	75mm	68mm	68mm	62mm	62mm
Fork Length (Axle-To-Crown)	405mm	405mm	405mm	405mm	405mm	405mm
Trail	41.8mm low	41.9mm low	43.1mm low	43.1mm low	43.1mm low	43.1mm low
Mechanical Trail	39.3mm	39.5mm	40.8mm	40.8mm	41.1mm	41.1mm
Wheel Flop	13.5mm	13.2mm	13mm	13mm	12.4mm	12.4mm
Standover Height	673mm	704mm	738mm	799mm	848mm	885mm
Tire to Pedal Spindle	98.2mm 170 mm cranks	104.2mm 170 mm cranks	105.2mm 170 mm cranks	110.1mm 175 mm cranks	110.1mm 175 mm cranks	112.1mm 175 mm cranks
Pedal Spindle to Ground Clearance	108mm 170 mm cranks	108mm 170 mm cranks	108mm 170 mm cranks	103mm 175 mm cranks	103mm 175 mm cranks	103mm 175 mm cranks

	XS	S	M	L	XL	XXL
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	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	32mm	32mm	32mm	32mm	32mm	32mm
Tire Width Max	38mm	38mm	38mm	38mm	38mm	38mm
Tire Outer Diameter	686mm	686mm	686mm	686mm	686mm	686mm
Bike Length with Tires	1739mm	1745mm	1746mm	1756mm	1756mm	1758mm
Crank Length	170mm	170mm	170mm	175mm	175mm	175mm
Handlebar Width	600mm	600mm	600mm	660mm	660mm	660mm
Stem Length	90mm	90mm	100mm	100mm	100mm	100mm
Stem Angle	7deg	7deg	7deg	7deg	7deg	7deg

Published Sizing Recommendations

Height

147 cm

155 cm

165 cm

175 cm

186 cm

197 cm

203 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/hybrid-bikes/fitness-bikes/fx/fx-3-disc/