2025 T-Lab Bikes X1 Base XL (60)
Build
700C/29 in × 40 mm
Insights
Very 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 | 616mm |
| Reach | 423mm |
| Stack to Reach Ratio | 1.46:1 |
| Seat Tube Length, C-T | 580mm |
| Top Tube Length, Effective/Horizontal Unknown | 606mm |
| Top Tube Slope | 5.8deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 200mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 281mm |
| Chainstay Length | 426mm |
| Chainstay Length Horizontal | 420.2mm |
| Front-Center | 659mm |
| Front-Center Horizontal | 658.8mm |
| Wheelbase | 1079mm |
| Fork Offset/Rake | 50mm |
| Trail | 64.7mm mid/neutral |
| Mechanical Trail | 61.4mm |
| Wheel Flop | 19.5mm |
| Standover Height | 855mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 138mm |
| 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 | 1781mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Titanium |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 538 ft 10 in to |
Source:https://tlab-bike.files.svdcdn.com/production/upload/images/X1_R1_Geometries.pdf