2021 Trek Bikes Roscoe 8

	XS 13.5	S 15.5	M 17.5	ML 18.5	L 19.5	XL 21.5	XXL 23.0
Stack	605mm	614mm	614mm	615mm	625mm	644mm	644mm
Reach	351mm	364mm	394mm	410mm	428mm	442mm	457mm
Stack to Reach Ratio	1.72:1	1.69:1	1.56:1	1.5:1	1.46:1	1.46:1	1.41:1
Seat Tube Length, C-T	343mm	368mm	419mm	444mm	470mm	521mm	559mm
Top Tube Length, Effective/Horizontal Center	558mm	574mm	609mm	625mm	645mm	666mm	680mm
Head Tube Angle	67.1deg	67.2deg	67.2deg	67.3deg	67.3deg	67.4deg	67.4deg
Effective Seat Tube Angle, Unknown	71.1deg	71.2deg	70.7deg	70.8deg	70.8deg	70.9deg	70.9deg
Seat Tube Exit Angle	69.7deg	70.2deg	69.6deg	69.6deg	69.7deg	69.7deg	69.7deg
Head Tube Length	90mm	90mm	90mm	90mm	100mm	120mm	120mm
Bottom Bracket Drop	50mm	40mm	41mm	41mm	41mm	42mm	42mm
Bottom Bracket Height	313.1mm	323.1mm	322.1mm	322.1mm	322.1mm	321.1mm	321.1mm
Chainstay Length	438mm	438mm	438mm	438mm	438mm	438mm	438mm
Chainstay Length Horizontal	435.1mm	436.2mm	436.1mm	436.1mm	436.1mm	436mm	436mm
Front-Center	625.9mm	646.1mm	675.2mm	691.1mm	711.1mm	733.2mm	747.2mm
Front-Center Horizontal	623.9mm	644.8mm	673.9mm	689.9mm	709.9mm	732mm	746mm
Wheelbase	1059mm	1081mm	1110mm	1126mm	1146mm	1168mm	1182mm
Fork Offset/Rake	44mm	44mm	44mm	44mm	44mm	44mm	44mm
Trail	105.6mm very high	104.9mm very high	104.9mm very high	104.2mm very high	104.2mm very high	103.5mm very high	103.5mm very high
Mechanical Trail	97.3mm	96.7mm	96.7mm	96.1mm	96.1mm	95.6mm	95.6mm
Wheel Flop	37.9mm	37.5mm	37.5mm	37.1mm	37.1mm	36.7mm	36.7mm
Standover Height	731mm	754mm	751mm	748mm	763mm	760mm	815mm
Tire to Pedal Spindle	92.7mm 170 mm cranks	113mm 170 mm cranks	142.1mm 170 mm cranks	158mm 170 mm cranks	178mm 170 mm cranks	200.1mm 170 mm cranks	214.1mm 170 mm cranks
Pedal Spindle to Ground Clearance	143.1mm 170 mm cranks	153.1mm 170 mm cranks	152.1mm 170 mm cranks	152.1mm 170 mm cranks	152.1mm 170 mm cranks	151.1mm 170 mm cranks	151.1mm 170 mm cranks

	XS 13.5	S 15.5	M 17.5	ML 18.5	L 19.5	XL 21.5	XXL 23.0
Wheel Size	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD	650B/27.5 in 584 mm BSD
Tire Width	2.8in	2.8in	2.8in	2.8in	2.8in	2.8in	2.8in
Tire Width Max	2.8in	2.8in	2.8in	2.8in	2.8in	2.8in	2.8in
Tire Outer Diameter	726.2mm	726.2mm	726.2mm	726.2mm	726.2mm	726.2mm	726.2mm
Bike Length with Tires	1785.2mm	1807.2mm	1836.2mm	1852.2mm	1872.2mm	1894.2mm	1908.2mm

Published Sizing Recommendations

Height	137 cm to 155 cm	153 cm to 166.5 cm	161 cm to 172 cm	165.5 cm to 179 cm	177 cm to 188 cm	186 cm to 196 cm	195 cm to 203 cm
PBH	64 in to 73 in	72 in to 81 in	76 in to 81 in	77 in to 84 in	83 in to 88 in	87 in to 92 in	92 in to 95 in

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

Hardtail Trail MTB

Source:https://www.trekbikes.com/us/en_US/bikes/mountain-bikes/trail-mountain-bikes/roscoe/roscoe-8/p/28487/?colorCode=bluedark_grey, https://www.trekbikes.com/international/en_IN_TL/international/en_IN_TL/bikes/mountain-bikes/trail-mountain-bikes/roscoe/roscoe-8/p/28487/

Suggest Bike Edit

2021 Trek Bikes Roscoe 8

Geometry

8 Build

Published Sizing Recommendations

Stack and Reach vs. Category Trend