2021 Trek Bikes FX 4 Disc S
Build
700C/29 in × 21 mm
Insights
Design deviates from other sizes of Trek Bikes FX
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 539mm |
| Reach | 393mm |
| Stack to Reach Ratio | 1.37:1 |
| Seat Tube Length, C-T | 381mm |
| Top Tube Length, Effective/Horizontal Center | 542mm |
| Top Tube Slope | 19.2deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 74.5deg |
| Head Tube Length | 115mm |
| Bottom Bracket Drop | 65mm |
| Bottom Bracket Height | 267mm |
| Chainstay Length | 450mm |
| Chainstay Length Horizontal | 445.3mm |
| Front-Center | 617.2mm |
| Front-Center Horizontal | 613.7mm |
| Wheelbase | 1059mm |
| Fork Offset/Rake | 49.8mm |
| Trail | 64.7mm mid/neutral |
| Mechanical Trail | 61mm |
| Wheel Flop | 20.4mm |
| Standover Height | 704mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 115.2mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 97mm |
4 Disc Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 21mm |
| Tire Outer Diameter | 664mm |
| Bike Length with Tires | 1723mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Source:https://www.trekbikes.com/ca/en_CA/bikes/hybrid-bikes/fitness-bikes/fx/fx-4-disc/p/34135/