2020 Bearclaw Bicycle Co. Frank Base M
Build
650B/27.5 in × 4.5 in
Insights
Average stack and reach vs trend of rigid fatbike bikes
Stack and Reach vs. Category Trend
View all sizes
Geometry
| Stack | 611.3mm |
| Reach | 414.1mm |
| Stack to Reach Ratio | 1.48:1 |
| Seat Tube Length, Unknown | 440mm |
| Top Tube Length, Effective/Horizontal Unknown | 600.2mm |
| Top Tube Slope | 19.3deg |
| Head Tube Angle | 70.5deg |
| Seat Tube Angle | 73deg |
| Head Tube Length | 135mm |
| Bottom Bracket Drop | 60mm |
| Bottom Bracket Height | 346.3mm |
| Chainstay Length | 463mm |
| Chainstay Length Horizontal | 459.1mm |
| Front-Center | 659.3mm |
| Front-Center Horizontal | 656.6mm |
| Wheelbase | 1115.7mm |
| Fork Offset/Rake | 45mm |
| Fork Length, Unknown | 468mm |
| Trail | 96.1mm very high |
| Mechanical Trail | 90.6mm |
| Wheel Flop | 30.3mm |
| Tire to Pedal Spindle Distance With 170 mm cranks | 83mm |
| Pedal Spindle to Ground Clearance With 170 mm cranks | 176.3mm |
Base Build
| Wheel Size | 650B, 27.5 inch (584mm BSD) |
| Tire Width | 4.5in |
| Tire Outer Diameter | 812.6mm |
| Bike Length with Tires | 1928.3mm |
| Crank Length | 170mm |
| Handlebar Width | 700mm |
| Stem Length | 70mm |
| Suspension Type | Rigid, suspension corrected |
| Bar Type | Flat Bar |
| Frame Material | Titanium |
| Fork Material | Titanium |
| Brake Type | Disc |
Source:https://bearclawbicycleco.com/frank-titanium-fat-bike/