1985 Trek Bikes 850 Base 54cm
Build
26 in × 2.13 in
Insights
Stack and Reach vs. Category Trend
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Geometry
| Seat Tube Length, C-T | 540mm |
| Top Tube Length, Actual C-C | 580mm |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 71.5deg |
| Bottom Bracket Drop | 50mm |
| Bottom Bracket Height | 283.6mm |
| Chainstay Length | 485mm |
| Chainstay Length Horizontal | 482.4mm |
| Front-Center | 617.6mm |
| Front-Center Horizontal | 615.6mm |
| Wheelbase | 1098mm |
| Fork Offset/Rake | 45mm |
| Trail | 67.3mm high |
| Mechanical Trail | 63.6mm |
| Wheel Flop | 20.7mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 114mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 113.6mm |
Base Build
| Wheel Size | 26 inch (559mm BSD) |
| Tire Width | 2.13in |
| Tire Outer Diameter | 667.2mm |
| Bike Length with Tires | 1765.2mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Rim |
Source:http://www.vintage-trek.com/images/trek/85All-Terrain.pdf