2021 Marin Bikes bolinas ridge Base M (29)
Build
700C/29 in × 2.2 in
Insights
Average stack and reach vs trend of hardtail cross-country mtb bikes
Design deviates from other sizes of Marin Bikes bolinas ridge
Suspension sag unknown
Geometry may mis-represent actual riding geometry
Stack and Reach vs. Category Trend
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Geometry
| Stack | 616mm |
| Reach | 430mm |
| Stack to Reach Ratio | 1.43:1 |
| Seat Tube Length, C-T | 431mm |
| Top Tube Length, Effective/Horizontal Center | 606.6mm |
| Top Tube Slope | 20.2deg |
| Head Tube Angle | 68deg |
| Seat Tube Angle | 74deg |
| Head Tube Length | 110mm |
| Bottom Bracket Drop | 61mm |
| Bottom Bracket Height | 305.9mm |
| Chainstay Length | 455mm |
| Chainstay Length Horizontal | 450.9mm |
| Front-Center | 711.7mm |
| Front-Center Horizontal | 709.1mm |
| Wheelbase | 1160mm |
| Fork Offset/Rake | 51mm |
| Fork Length, Unknown | 590mm |
| Trail | 93.2mm very high |
| Mechanical Trail | 86.4mm |
| Wheel Flop | 32.4mm |
| Standover Height | 716.4mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 174.9mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 135.9mm |
Base Build
| Wheel Size | 700C, 29 inch (622mm BSD) |
| Tire Width | 2.2in |
| Tire Outer Diameter | 733.8mm |
| Bike Length with Tires | 1893.8mm |
| Crank Length | 170mm |
| Handlebar Width | 780mm |
| Stem Length | 45mm |
| Suspension Type | Hardtail (Front suspension) |
| Bar Type | Flat Bar |
| Fork Travel | 80mm |
| Suspension Sag | Unknown |
| Frame Material | Aluminum |
| Fork Material | Aluminum |
| Brake Type | Disc |
Source:https://www.marinbikes.com/bikes/2024-bolinas-ridge-2