2026 Trek Bikes FX Sport AL 3 M (50)
Build
700C/29 in × 42 mm
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 594mm |
| Reach | 393mm |
| Stack to Reach Ratio | 1.51:1 |
| Seat Tube Length, C-C | 420mm |
| Top Tube Length, Effective/Horizontal Unknown | 563mm |
| Head Tube Angle | 71deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 165mm |
| Bottom Bracket Drop | 65mm |
| Bottom Bracket Height | 288mm |
| Chainstay Length | 447mm |
| Chainstay Length Horizontal | 442.3mm |
| Front-Center | 631.1mm |
| Front-Center Horizontal | 627.8mm |
| Wheelbase | 1070mm |
| Fork Offset/Rake | 50mm |
| Trail | 68.7mm high |
| Mechanical Trail | 64.9mm |
| Wheel Flop | 21.1mm |
| Standover Height | 754mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 108.1mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 118mm |
AL 3 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 42mm |
| Tire Outer Diameter | 706mm |
| Bike Length with Tires | 1776mm |
| Crank Length | 170mm |
| Handlebar Width | 660mm |
| Stem Length | 80mm |
| Stem Angle | 7deg |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Aluminum |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 165 cm to 175 cm |
| PBH | 77 cm to 83 cm |
Source:https://www.trekbikes.com/pl/pl_PL/rowery/rowery-hybrydowe/rowery-fitness/fx/fx-sport/f/F421-1/fx-sport-al-3/58592/5339888