2018 Trek Bikes Roscoe 8 21.5"
Build
650B/27.5 in × 2.8 in
Insights
Average stack and reach vs trend of hardtail trail mtb bikes
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 636mm |
| Reach | 453mm |
| Stack to Reach Ratio | 1.4:1 |
| Seat Tube Length, Unknown | 521mm |
| Top Tube Length, Actual C-C | 659mm |
| Top Tube Slope | 13deg |
| Head Tube Angle | 68.3deg |
| Seat Tube Angle | 71deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 45.1mm |
| Bottom Bracket Height | 318mm |
| Chainstay Length | 438mm |
| Chainstay Length Horizontal | 435.7mm |
| Front-Center | 741.7mm |
| Front-Center Horizontal | 740.3mm |
| Wheelbase | 1176mm |
| Fork Offset/Rake | 48.5mm |
| Trail | 92.3mm very high |
| Mechanical Trail | 85.8mm |
| Wheel Flop | 31.7mm |
| Standover Height | 753mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 208.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 148mm |
8 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.8in |
| Tire Outer Diameter | 726.2mm |
| Bike Length with Tires | 1902.2mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 110mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:https://www.vitalmtb.com/product/guide/Bikes,3/Trek/Roscoe-8,21502