2021 Trek Bikes 520 Disc Base 51 cm
Build
700C/29 in × 38 mm
Insights
Design deviates from other sizes of Trek Bikes 520 Disc
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 551mm |
| Reach | 373mm |
| Stack to Reach Ratio | 1.48:1 |
| Seat Tube Length, C-T | 482mm |
| Top Tube Length, Effective/Horizontal HT Top | 531mm |
| Top Tube Slope | 9.8deg |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 125mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 274mm |
| Chainstay Length | 450mm |
| Chainstay Length Horizontal | 443.7mm |
| Front-Center | 606mm |
| Front-Center Horizontal | 601.3mm |
| Wheelbase | 1045mm |
| Fork Offset/Rake | 52mm |
| Trail | 71.7mm high |
| Mechanical Trail | 67.4mm |
| Wheel Flop | 23mm |
| Standover Height | 741mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 87mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 104mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 38mm |
| Tire Outer Diameter | 698mm |
| Bike Length with Tires | 1743mm |
| Crank Length | 170mm |
| Handlebar Width | 42cm |
| Stem Length | 90mm |
| Stem Angle | 7deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Aluminum |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 162 cm to 168 cm |
| PBH | 76 in to 79 in |
Source:https://www.trekbikes.com/us/en_US/bikes/adventure-touring-bikes/520/520-disc/p/24000/