2026 Trek Bikes FX Sport AL 3 L (55)
Build
700C/29 in × 42 mm
Stack and Reach vs. Category Trend
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Geometry
| Stack | 620mm |
| Reach | 399mm |
| Stack to Reach Ratio | 1.55:1 |
| Seat Tube Length, C-C | 465mm |
| Top Tube Length, Effective/Horizontal Unknown | 583mm |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 190mm |
| Bottom Bracket Drop | 65mm |
| Bottom Bracket Height | 288mm |
| Chainstay Length | 447mm |
| Chainstay Length Horizontal | 442.3mm |
| Front-Center | 641.1mm |
| Front-Center Horizontal | 637.8mm |
| Wheelbase | 1080mm |
| Fork Offset/Rake | 50mm |
| Trail | 65.4mm high |
| Mechanical Trail | 62mm |
| Wheel Flop | 19.7mm |
| Standover Height | 791mm |
| Tire to Pedal Spindle Distance With 175 mm cranks | 113.1mm |
| Pedal Spindle to Ground Clearance With 175 mm cranks | 113mm |
AL 3 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 42mm |
| Tire Outer Diameter | 706mm |
| Bike Length with Tires | 1786mm |
| Crank Length | 175mm |
| 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 | 175 cm to 186 cm |
| PBH | 82 cm to 88 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