2025 Marin Bikes Four Corners 2 S
Build
650B/27.5 in × 45 mm
Insights
Somewhat aggressive stack and reach vs trend of off-road touring bikes
Design deviates from other sizes of Marin Bikes Four Corners
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 580mm |
| Reach | 381mm |
| Stack to Reach Ratio | 1.52:1 |
| Seat Tube Length, Effective Unknown | 422mm |
| Top Tube Length, Effective/Horizontal Unknown | 553mm |
| Head Tube Angle | 70deg |
| Seat Tube Angle | 73.5deg |
| Head Tube Length | 188mm |
| Bottom Bracket Drop | 53.5mm |
| Bottom Bracket Height | 283.5mm |
| Chainstay Length | 432mm |
| Chainstay Length Horizontal | 428.7mm |
| Front-Center | 620.6mm |
| Front-Center Horizontal | 618.3mm |
| Wheelbase | 1047mm |
| Fork Offset/Rake | 43mm |
| Trail | 76.9mm high |
| Mechanical Trail | 72.3mm |
| Wheel Flop | 24.7mm |
| Standover Height | 707mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 113.6mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 113.5mm |
2 Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 45mm |
| Tire Outer Diameter | 674mm |
| Bike Length with Tires | 1721mm |
| Crank Length | 170mm |
| Handlebar Width | 440mm |
| Stem Length | 70mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Drop Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Published Sizing Recommendations
| Height | 5 ft 2 in to 5 ft 6 in |
Source:https://www.marinbikes.com/bikes/2025-four-corners-2