2026 Marin Bikes Muirwoods Base S
Build
650B/27.5 in × 2.35 in
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 | 580.2mm |
| Reach | 400mm |
| Stack to Reach Ratio | 1.45:1 |
| Seat Tube Length, C-T | 420mm |
| Top Tube Length, Effective/Horizontal Center | 566.4mm |
| Top Tube Slope | 18.9deg |
| Head Tube Angle | 67.5deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 150mm |
| Bottom Bracket Drop | 75mm |
| Bottom Bracket Height | 276.7mm |
| Chainstay Length | 430mm |
| Chainstay Length Horizontal | 423.4mm |
| Front-Center | 668.7mm |
| Front-Center Horizontal | 664.4mm |
| Wheelbase | 1087.9mm |
| Fork Offset/Rake | 45mm |
| Trail | 97mm very high |
| Mechanical Trail | 89.6mm |
| Wheel Flop | 34.3mm |
| Standover Height | 672mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 147mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 106.7mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 2.35in |
| Tire Outer Diameter | 703.4mm |
| Bike Length with Tires | 1791.2mm |
| Crank Length | 170mm |
| Handlebar Width | 680mm |
| Stem Length | 45mm |
| Suspension Type | Rigid, non-suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Steel |
| Fork Material | Steel |
| Brake Type | Disc |
Source:https://www.marinbikes.com/bikes/2025-muirwoods-2