2025 Sonder Santiago 105 Small
Build
700C/29 in × 37 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 | 528mm |
| Reach | 375mm |
| Stack to Reach Ratio | 1.41:1 |
| Seat Tube Length, C-T | 460mm |
| Top Tube Length, Effective/Horizontal Center | 532mm |
| Top Tube Slope | 9.8deg |
| Head Tube Angle | 72deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 120mm |
| Bottom Bracket Drop | 70mm |
| Bottom Bracket Height | 278mm |
| Chainstay Length | 420mm |
| Chainstay Length Horizontal | 414.1mm |
| Front-Center | 581.3mm |
| Front-Center Horizontal | 577.1mm |
| Wheelbase | 991.2mm |
| Fork Offset/Rake | 50mm |
| Trail | 60.5mm mid/neutral |
| Mechanical Trail | 57.5mm |
| Wheel Flop | 17.8mm |
| Standover Height | 749.1mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 63.3mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 108mm |
105 Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 37mm |
| Tire Outer Diameter | 696mm |
| Bike Length with Tires | 1687.2mm |
| Handlebar Width | 400mm |
| Stem Length | 80mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Unknown |
Source:https://alpkit.com/products/sonder-santiago-105-hydraulic