2021 Trek Bikes Rail 5

Somewhat upright stack and reachvs category

Average stack and reachvs category

	15.5 Low	15.5 High	17.5 Low	17.5 High	19.5 Low	19.5 High	21.5 Low	21.5 High
Stack	626mm	623mm	626mm	622mm	630mm	627mm	639mm	636mm
Reach	420mm	425mm	445mm	450mm	465mm	470mm	495mm	499mm
Stack to Reach Ratio	1.49:1	1.47:1	1.41:1	1.38:1	1.35:1	1.33:1	1.29:1	1.27:1
Seat Tube Length, C-T	410mm	410mm	420mm	420mm	450mm	450mm	500mm	500mm
Top Tube Length, Effective/Horizontal Center	588mm	587mm	613mm	611mm	634mm	633mm	666mm	665mm
Top Tube Slope	23.6deg	23.1deg	21.7deg	21.2deg	18.6deg	18.2deg	14deg	13.7deg
Head Tube Angle	64.5deg	64.9deg	64.5deg	64.9deg	64.5deg	64.9deg	64.5deg	64.9deg
Seat Tube Angle	75deg	75deg	75deg	75deg	75deg	75deg	75deg	75deg
Head Tube Length	105mm	105mm	105mm	105mm	110mm	110mm	120mm	120mm
Bottom Bracket Drop	35mm	29mm	35mm	29mm	35mm	29mm	35mm	29mm
Bottom Bracket Height	342mm	348mm	342mm	348mm	342mm	348mm	342mm	348mm
Chainstay Length	448mm	447mm	448mm	447mm	448mm	447mm	448mm	447mm
Chainstay Length Horizontal	446.6mm	446.1mm	446.6mm	446.1mm	446.6mm	446.1mm	446.6mm	446.1mm
Front-Center	750.2mm	749.5mm	775.2mm	774.5mm	797.1mm	797.5mm	832.1mm	831.5mm
Front-Center Horizontal	749.4mm	748.9mm	774.4mm	773.9mm	796.4mm	796.9mm	831.4mm	830.9mm
Wheelbase	1196mm	1195mm	1221mm	1220mm	1243mm	1243mm	1278mm	1277mm
Fork Offset/Rake	43mm	43mm	43mm	43mm	43mm	43mm	43mm	43mm
Fork Length (Axle-To-Crown)	537mm	537mm	537mm	537mm	537mm	537mm	537mm	537mm
Trail	132.2mm very high	129.1mm very high	132.2mm very high	129.1mm very high	132.2mm very high	129.1mm very high	132.2mm very high	129.1mm very high
Mechanical Trail	119.3mm	116.9mm	119.3mm	116.9mm	119.3mm	116.9mm	119.3mm	116.9mm
Wheel Flop	51.4mm	49.6mm	51.4mm	49.6mm	51.4mm	49.6mm	51.4mm	49.6mm
Standover Height	743mm	748mm	773mm	778mm	762mm	767mm	775mm	780mm
Tire to Pedal Spindle	208.2mm 165 mm cranks	207.5mm 165 mm cranks	233.1mm 165 mm cranks	232.4mm 165 mm cranks	255.1mm 165 mm cranks	255.4mm 165 mm cranks	290.1mm 165 mm cranks	289.4mm 165 mm cranks
Pedal Spindle to Ground Clearance	177mm 165 mm cranks	183mm 165 mm cranks	177mm 165 mm cranks	183mm 165 mm cranks	177mm 165 mm cranks	183mm 165 mm cranks	177mm 165 mm cranks	183mm 165 mm cranks

	15.5 Low	15.5 High	17.5 Low	17.5 High	19.5 Low	19.5 High	21.5 Low	21.5 High
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	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	2.6in	2.6in	2.6in	2.6in	2.6in	2.6in	2.6in	2.6in
Tire Width Max	2.6in	2.6in	2.6in	2.6in	2.6in	2.6in	2.6in	2.6in
Tire Outer Diameter	754.1mm	754.1mm	754.1mm	754.1mm	754.1mm	754.1mm	754.1mm	754.1mm
Bike Length with Tires	1950.1mm	1949.1mm	1975.1mm	1974.1mm	1997.1mm	1997.1mm	2032.1mm	2031.1mm
Crank Length	165mm	165mm	165mm	165mm	165mm	165mm	165mm	165mm
Handlebar Width	750mm	750mm	750mm	750mm	750mm	750mm	750mm	750mm
Stem Length	4cm	4cm	5cm	5cm	5cm	5cm	5cm	5cm

Published Sizing Recommendations

Height	153 cm to 166.5 cm	153 cm to 166.5 cm	161 cm to 175 cm	161 cm to 175 cm	174 cm to 188 cm	174 cm to 188 cm	186 cm to 196 cm	186 cm to 196 cm
PBH	72 cm to 79 cm	72 cm to 79 cm	76 cm to 82 cm	76 cm to 82 cm	82 cm to 88 cm	82 cm to 88 cm	87 cm to 92 cm	87 cm to 92 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.

Learn more about the Upright/Aggressive Scale

Category Trend

Full-suspension All-mountain/Enduro MTB

Source:https://www.trekbikes.com/us/en_US/bikes/mountain-bikes/electric-mountain-bikes/rail/rail-5/p/30913/?colorCode=greendark_black

Suggest Bike Edit

2021 Trek Bikes Rail 5

Geometry

5 Build

Published Sizing Recommendations

Stack and Reach vs. Category Trend