2026 Thömus Silker X3 (Gravel 50mm Flipchip) Base 61
Build
700C/29 in × 50 mm
Insights
Somewhat aggressive stack and reach vs trend of all-road/gravel bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 627mm |
| Reach | 417mm |
| Stack to Reach Ratio | 1.5:1 |
| Seat Tube Length, C-T | 575mm |
| Top Tube Length, Effective/Horizontal Center | 627mm |
| Top Tube Slope | 7.4deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 205mm |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 289mm |
| Chainstay Length | 424mm |
| Chainstay Length Horizontal | 417.8mm |
| Front-Center | 653.9mm |
| Front-Center Horizontal | 649.9mm |
| Wheelbase | 1067.8mm |
| Fork Offset/Rake | 50mm |
| Fork Length, Unknown | 395mm |
| Trail | 64.7mm mid/neutral |
| Mechanical Trail | 61.6mm |
| Wheel Flop | 19mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 122.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 119mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 50mm |
| Tire Outer Diameter | 722mm |
| Bike Length with Tires | 1789.8mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Carbon/Composite |
| Fork Material | Carbon/Composite |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 15 ft 10 in to |
Source:thoemus.ch