2020 Bearclaw Bicycle Co. Frank Base
- Category
- Rigid Fatbike
- Design
- Flat Bar, Rigid, suspension corrected
- Frame
- Titanium
- Fork
- Titanium
- Features
- Disc brake
Geometry
S | M | L | XL | |
Stack | 593mm | 611.3mm | 625.5mm | 639.6mm |
Reach | 394.9mm | 414.1mm | 439.4mm | 465mm |
Stack to Reach Ratio | 1.5:1 | 1.48:1 | 1.42:1 | 1.38:1 |
Seat Tube Length, Unknown | 381mm | 440mm | 480mm | 530mm |
Top Tube Length, Effective/Horizontal Unknown | 570mm | 600.2mm | 630mm | 660mm |
Top Tube Slope | 24.4deg | 19.3deg | 16deg | 12.1deg |
Head Tube Angle | 69.5deg | 70.5deg | 70.5deg | 70.5deg |
Seat Tube Angle | 73.5deg | 73deg | 73deg | 73deg |
Head Tube Length | 120mm | 135mm | 150mm | 170mm |
Bottom Bracket Drop | 60mm | 60mm | 60mm | 60mm |
Bottom Bracket Height | 346.3mm | 346.3mm | 346.3mm | 346.3mm |
Chainstay Length | 463mm | 463mm | 463mm | 463mm |
Chainstay Length Horizontal | 459.1mm | 459.1mm | 459.1mm | 459.1mm |
Front-Center | 643.5mm | 659.3mm | 689.9mm | 720.8mm |
Front-Center Horizontal | 640.7mm | 656.6mm | 687.3mm | 718.3mm |
Wheelbase | 1099.8mm | 1115.7mm | 1146.4mm | 1177.4mm |
Fork Offset/Rake | 45mm | 45mm | 45mm | 45mm |
Fork Length, Unknown | 468mm | 468mm | 468mm | 468mm |
Trail | 103.9mm very high | 96.1mm very high | 96.1mm very high | 96.1mm very high |
Mechanical Trail | 97.3mm | 90.6mm | 90.6mm | 90.6mm |
Wheel Flop | 34.1mm | 30.3mm | 30.3mm | 30.3mm |
Tire to Pedal Spindle | 72.2mm 165 mm cranks | 83mm 170 mm cranks | 113.6mm 170 mm cranks | 144.5mm 170 mm cranks |
Pedal Spindle to Ground Clearance | 181.3mm 165 mm cranks | 176.3mm 170 mm cranks | 176.3mm 170 mm cranks | 176.3mm 170 mm cranks |
Base Build
S | M | L | XL | |
Wheel Size | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD | 650B/27.5 in 584 mm BSD |
Tire Width | 4.5in | 4.5in | 4.5in | 4.5in |
Tire Outer Diameter | 812.6mm | 812.6mm | 812.6mm | 812.6mm |
Bike Length with Tires | 1912.4mm | 1928.3mm | 1959mm | 1990mm |
Crank Length | 165mm | 170mm | 170mm | 170mm |
Handlebar Width | 680mm | 700mm | 720mm | 740mm |
Stem Length | 60mm | 70mm | 80mm | 90mm |
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 FatbikeSource:https://bearclawbicycleco.com/frank-titanium-fat-bike/