2018 Trek Bikes Roscoe 8
- Category
- Hardtail Trail MTB
- Design
- Flat Bar, Hardtail (Front suspension)
- Frame
- Aluminum
- Suspension
- 110mm fork travel
Somewhat upright stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry | Average stack and reachvs category Suspension sag unknown Geometry may mis-represent actual riding geometry |
Geometry
15.5" | 17.5" | 18.5" | 19.5" | 21.5" | 23" | |
Stack | 607mm | 607mm | 607mm | 617mm | 636mm | 639mm |
Reach | 376mm | 405mm | 422mm | 439mm | 453mm | 468mm |
Stack to Reach Ratio | 1.61:1 | 1.5:1 | 1.44:1 | 1.41:1 | 1.4:1 | 1.37:1 |
Seat Tube Length, Unknown | 368mm | 419mm | 444mm | 470mm | 521mm | 559mm |
Top Tube Length, Actual C-C | 573mm | 602mm | 618mm | 638mm | 659mm | 673mm |
Top Tube Slope | 27.6deg | 21.3deg | 18.3deg | 16.3deg | 13deg | 9.6deg |
Head Tube Angle | 68.3deg | 68.3deg | 68.3deg | 68.3deg | 68.3deg | 68.3deg |
Seat Tube Angle | 71deg | 71deg | 71deg | 71deg | 71deg | 71deg |
Head Tube Length | 90mm | 90mm | 90mm | 100mm | 120mm | 120mm |
Bottom Bracket Drop | 45.1mm | 45.1mm | 45.1mm | 45.1mm | 45.1mm | 45.1mm |
Bottom Bracket Height | 318mm | 318mm | 318mm | 318mm | 318mm | 318mm |
Chainstay Length | 438mm | 438mm | 438mm | 438mm | 438mm | 438mm |
Chainstay Length Horizontal | 435.7mm | 435.7mm | 435.7mm | 435.7mm | 435.7mm | 435.7mm |
Front-Center | 654.9mm | 683.8mm | 699.8mm | 719.8mm | 741.7mm | 755.7mm |
Front-Center Horizontal | 653.3mm | 682.3mm | 698.3mm | 718.3mm | 740.3mm | 754.3mm |
Wheelbase | 1089mm | 1118mm | 1134mm | 1154mm | 1176mm | 1190mm |
Fork Offset/Rake | 49.9mm | 49.9mm | 49mm | 48.1mm | 48.5mm | 46.5mm |
Trail | 90.8mm very high | 90.8mm very high | 91.8mm very high | 92.8mm very high | 92.3mm very high | 94.5mm very high |
Mechanical Trail | 84.3mm | 84.3mm | 85.3mm | 86.2mm | 85.8mm | 87.8mm |
Wheel Flop | 31.2mm | 31.2mm | 31.5mm | 31.9mm | 31.7mm | 32.5mm |
Standover Height | 751mm | 747mm | 741mm | 757mm | 753mm | 775mm |
Tire to Pedal Spindle | 121.8mm 170 mm cranks | 150.7mm 170 mm cranks | 166.7mm 170 mm cranks | 186.6mm 170 mm cranks | 208.6mm 170 mm cranks | 222.6mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 148mm 170 mm cranks | 148mm 170 mm cranks | 148mm 170 mm cranks | 148mm 170 mm cranks | 148mm 170 mm cranks | 148mm 170 mm cranks |
8 Build
15.5" | 17.5" | 18.5" | 19.5" | 21.5" | 23" | |
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 | 1815.2mm | 1844.2mm | 1860.2mm | 1880.2mm | 1902.2mm | 1916.2mm |
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.vitalmtb.com/product/guide/Bikes,3/Trek/Roscoe-8,21502