2021 Trek Bikes 820 Base xl
Build
26 in × 2 in
Insights
Design deviates from other sizes of Trek Bikes 820
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Seat Tube Length, C-T | 533mm |
| Top Tube Length, Effective/Horizontal Center | 590mm |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 170mm |
| Bottom Bracket Drop | 37.3mm |
| Bottom Bracket Height | 293mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 428.4mm |
| Front-Center | 651.7mm |
| Front-Center Horizontal | 650.6mm |
| Wheelbase | 1079mm |
| Fork Offset/Rake | 40mm |
| Trail | 74.5mm high |
| Mechanical Trail | 70.3mm |
| Wheel Flop | 23.5mm |
| Standover Height | 827mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 151.4mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 123mm |
Base Build
| Wheel Size | 26 inch (559mm BSD) |
| Tire Width | 2in |
| Tire Outer Diameter | 660.6mm |
| Bike Length with Tires | 1739.6mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 80mm |
| Suspension Sag | Unknown |
| Frame Material | Unknown |
| Fork Material | Unknown |
| Brake Type | Unknown |
Source:https://www.trekbikes.com/us/en_US/bikes/mountain-bikes/cross-country-mountain-bikes/820/820/p/17027/