2026 Marin Bikes Madrone Trail Base
- Category
- Rigid MTB
- Design
- Moto/Klunker/Riser Bar, Rigid, non-suspension corrected
- Frame
- Steel
- Fork
- Steel
- Features
- Disc brake
Geometry
Medium | Large | |
Stack | 500mm | 520mm |
Reach | 345mm | 365mm |
Stack to Reach Ratio | 1.45:1 | 1.42:1 |
Seat Tube Length, C-T | 515mm | 540mm |
Top Tube Length, Effective/Horizontal Center | 524mm | 553mm |
Top Tube Slope | 1.8deg | 1.3deg |
Head Tube Angle | 66deg | 66deg |
Seat Tube Angle | 70deg | 70deg |
Head Tube Length | 100mm | 125mm |
Bottom Bracket Drop | 52mm | 52mm |
Bottom Bracket Height | 297.2mm | 297.2mm |
Chainstay Length | 470mm | 470mm |
Chainstay Length Horizontal | 467.1mm | 467.1mm |
Front-Center | 598.2mm | 628mm |
Front-Center Horizontal | 595.9mm | 625.9mm |
Wheelbase | 1063mm | 1093mm |
Fork Offset/Rake | 50mm | 50mm |
Trail | 100.7mm very high | 100.7mm very high |
Mechanical Trail | 92mm | 92mm |
Wheel Flop | 37.4mm | 37.4mm |
Standover Height | 795mm | 815mm |
Tire to Pedal Spindle | 79mm 170 mm cranks | 108.9mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 127.2mm 170 mm cranks | 127.2mm 170 mm cranks |
Base Build
Medium | Large | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 2.25in | 2.25in |
Tire Outer Diameter | 698.3mm | 698.3mm |
Bike Length with Tires | 1761.3mm | 1791.3mm |
Crank Length | 170mm | 170mm |
Handlebar Width | 750mm | 750mm |
Stem Length | 90mm | 90mm |
Published Sizing Recommendations
Height | 163 cm to 175 cm | 175 cm to 183 cm |
Stack and Reach vs. Category Trend
Very Upright
Somewhat Upright
Average
Somewhat Aggressive
Very Aggressive
The Bike Insights Upright/Aggressive scale is based on analysis of a bike’s proportions relative to similar sized bikes in the same category.
Learn more about the Upright/Aggressive ScaleCategory Trend
Rigid MTBSource:marinbikes.com