2026 Thömus Silker X3 (Gravel 50mm Flipchip) Base 51
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
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Geometry
| Stack | 544mm |
| Reach | 380mm |
| Stack to Reach Ratio | 1.43:1 |
| Seat Tube Length, C-T | 485mm |
| Top Tube Length, Effective/Horizontal Center | 536mm |
| Top Tube Slope | 8.6deg |
| Head Tube Angle | 71.5deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 72mm |
| Bottom Bracket Height | 289mm |
| Chainstay Length | 424mm |
| Chainstay Length Horizontal | 417.8mm |
| Front-Center | 595mm |
| Front-Center Horizontal | 590.7mm |
| Wheelbase | 1008.5mm |
| Fork Offset/Rake | 50mm |
| Fork Length, Unknown | 395mm |
| Trail | 68.1mm high |
| Mechanical Trail | 64.6mm |
| Wheel Flop | 20.5mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 64mm |
| 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 | 1730.5mm |
| 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 | 13 ft 4 in to |
Source:thoemus.ch