2025 T-Lab Bikes X1 Base L (58)
Build
700C/29 in × 40 mm
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Design deviates from other sizes of T-Lab Bikes X1
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 598mm |
| Reach | 401mm |
| Stack to Reach Ratio | 1.49:1 |
| Seat Tube Length, C-T | 560mm |
| Top Tube Length, Effective/Horizontal Center | 578mm |
| Top Tube Slope | 6.2deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 170mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 281mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 424.3mm |
| Front-Center | 634mm |
| Front-Center Horizontal | 635.7mm |
| Wheelbase | 1060mm |
| Fork Offset/Rake | 50mm |
| Trail | 64.7mm mid/neutral |
| Mechanical Trail | 61.4mm |
| Wheel Flop | 19.5mm |
| Standover Height | 829mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 113mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 111mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 40mm |
| Tire Outer Diameter | 702mm |
| Bike Length with Tires | 1762mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Titanium |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 6 ft 0 in to 6 ft 4 in |
Source:https://t-lab-bikes.com/en-ca/bikes/x1