2020 Trek Bikes Roscoe 8
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Suspension
- 120mm fork travel, 25% sag
- Features
- Disc brake
Geometry
S | M | ML | L | XL | XXL | |
Stack | 614mm | 614mm | 615mm | 625mm | 643mm | 644mm |
Reach | 364mm | 394mm | 410mm | 428mm | 442mm | 457mm |
Stack to Reach Ratio | 1.69:1 | 1.56:1 | 1.5:1 | 1.46:1 | 1.45:1 | 1.41:1 |
Seat Tube Length, C-T | 368mm | 419mm | 444mm | 470mm | 521mm | 559mm |
Top Tube Length, Effective/Horizontal HT Top | 574mm | 609mm | 625mm | 645mm | 666mm | 680mm |
Top Tube Slope | 28.8deg | 22.3deg | 19.4deg | 17.3deg | 13.8deg | 10.3deg |
Head Tube Angle | 67.2deg | 67.2deg | 67.3deg | 67.3deg | 67.4deg | 67.4deg |
Seat Tube Angle | 71.2deg | 70.7deg | 70.8deg | 70.8deg | 70.9deg | 70.9deg |
Head Tube Length | 90mm | 90mm | 90mm | 100mm | 120mm | 120mm |
Bottom Bracket Drop | 40mm | 41mm | 41mm | 41mm | 42mm | 42mm |
Bottom Bracket Height | 323.1mm | 322.1mm | 322.1mm | 322.1mm | 321.1mm | 321.1mm |
Chainstay Length | 438mm | 438mm | 438mm | 438mm | 438mm | 438mm |
Chainstay Length Horizontal | 436.2mm | 436.1mm | 436.1mm | 436.1mm | 436mm | 436mm |
Front-Center | 646.1mm | 675.2mm | 691.1mm | 711.1mm | 733.2mm | 747.2mm |
Front-Center Horizontal | 644.8mm | 673.9mm | 689.9mm | 709.9mm | 732mm | 746mm |
Wheelbase | 1081mm | 1110mm | 1126mm | 1146mm | 1168mm | 1182mm |
Fork Offset/Rake | 42mm | 42mm | 42mm | 42mm | 42mm | 42mm |
Trail | 107.1mm very high | 107.1mm very high | 106.4mm very high | 106.4mm very high | 105.7mm very high | 105.7mm very high |
Mechanical Trail | 98.7mm | 98.7mm | 98.1mm | 98.1mm | 97.6mm | 97.6mm |
Wheel Flop | 38.3mm | 38.3mm | 37.9mm | 37.9mm | 37.5mm | 37.5mm |
Standover Height | 754mm | 751mm | 748mm | 763mm | 760mm | 815mm |
Tire to Pedal Spindle | 113mm 170 mm cranks | 137.1mm 175 mm cranks | 153mm 175 mm cranks | 173mm 175 mm cranks | 195.1mm 175 mm cranks | 209.1mm 175 mm cranks |
Pedal Spindle to Ground Clearance | 153.1mm 170 mm cranks | 147.1mm 175 mm cranks | 147.1mm 175 mm cranks | 147.1mm 175 mm cranks | 146.1mm 175 mm cranks | 146.1mm 175 mm cranks |
8 Build
S | M | ML | L | XL | XXL | |
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 |
Tire Width | 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 |
Bike Length with Tires | 1807.2mm | 1836.2mm | 1852.2mm | 1872.2mm | 1894.2mm | 1908.2mm |
Crank Length | 170mm | 175mm | 175mm | 175mm | 175mm | 175mm |
Handlebar Width | 750mm | 750mm | 750mm | 750mm | 750mm | 750mm |
Stem Length | 50mm | 50mm | 60mm | 60mm | 60mm | 60mm |
Stem Angle | 0deg | 0deg | 0deg | 0deg | 0deg | 0deg |
Published Sizing Recommendations
Height | 153 cm to 162 cm | 161 cm to 172 cm | 170 cm to 179 cm | 177 cm to 188 cm | 186 cm to 196 cm | 195 cm to 203 cm |
PBH | 72 cm to 76 cm | 76 cm to 81 cm | 80 cm to 84 cm | 83 cm to 88 cm | 87 cm to 92 cm | 92 cm to 95 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 ScaleCategory Trend
Hardtail Trail MTBSource:https://www.trekbikes.com/us/en_US/bikes/mountain-bikes/trail-mountain-bikes/roscoe/roscoe-8/p/28487/?colorCode=black_red