1985 Trek Bikes 850 Base
- Category
- Rigid MTB
- Design
- Flat Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Steel
- Features
- Rim brake
Geometry
44cm | 49cm | 54cm | 60cm | |
Seat Tube Length, C-T | 443mm | 489mm | 540mm | 602mm |
Top Tube Length, Actual C-C | 550mm | 563mm | 580mm | 600mm |
Head Tube Angle | 71deg | 71deg | 71deg | 71deg |
Seat Tube Angle | 72.5deg | 71.5deg | 71.5deg | 71.5deg |
Bottom Bracket Drop | 50mm | 50mm | 50mm | 50mm |
Bottom Bracket Height | 283.6mm | 283.6mm | 283.6mm | 283.6mm |
Chainstay Length | 485mm | 485mm | 485mm | 485mm |
Chainstay Length Horizontal | 482.4mm | 482.4mm | 482.4mm | 482.4mm |
Front-Center | 600.7mm | 600.7mm | 617.6mm | 637.6mm |
Front-Center Horizontal | 598.6mm | 598.6mm | 615.6mm | 635.6mm |
Wheelbase | 1081mm | 1081mm | 1098mm | 1118mm |
Fork Offset/Rake | 45mm | 45mm | 45mm | 45mm |
Trail | 67.3mm high | 67.3mm high | 67.3mm high | 67.3mm high |
Mechanical Trail | 63.6mm | 63.6mm | 63.6mm | 63.6mm |
Wheel Flop | 20.7mm | 20.7mm | 20.7mm | 20.7mm |
Tire to Pedal Spindle | 97.1mm 170 mm cranks | 97.1mm 170 mm cranks | 114mm 170 mm cranks | 134mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 113.6mm 170 mm cranks | 113.6mm 170 mm cranks | 113.6mm 170 mm cranks | 113.6mm 170 mm cranks |
Base Build
44cm | 49cm | 54cm | 60cm | |
Wheel Size | 26 in 559 mm BSD | 26 in 559 mm BSD | 26 in 559 mm BSD | 26 in 559 mm BSD |
Tire Width | 2.13in | 2.13in | 2.13in | 2.13in |
Tire Width Max | 2.35in | 2.35in | 2.35in | 2.35in |
Tire Outer Diameter | 667.2mm | 667.2mm | 667.2mm | 667.2mm |
Bike Length with Tires | 1748.2mm | 1748.2mm | 1765.2mm | 1785.2mm |
Source:http://www.vintage-trek.com/images/trek/85All-Terrain.pdf