2021 Bearclaw Bicycle Co. TōWMAK Base 57

Build

650B/27.5 in × 4.5 in

Insights

Very upright stack and reach vs trend of rigid fatbike bikes
Bar type unusual for category
This: Drop Bar
Category: Flat Bar
vs rigid fatbike bikes

Stack and Reach vs. Category Trend
View all sizes

Geometry

Stack
633.3mm
Reach
402.4mm
Stack to Reach Ratio
1.57:1
Seat Tube Length, C-T
570mm
Top Tube Length, Actual C-C
590mm
Top Tube Slope
8.7deg
Head Tube Angle
70deg
Seat Tube Angle
73.5deg
Head Tube Length
150mm
Bottom Bracket Drop
70mm
Bottom Bracket Height
336.3mm
Chainstay Length
450mm
Chainstay Length Horizontal
444.5mm
Front-Center
665.4mm
Front-Center Horizontal
661.7mm
Wheelbase
1106.2mm
Fork Offset/Rake
51mm
Fork Length (On-Axis)
468mm
Trail
93.6mm
very high
Mechanical Trail
88mm
Wheel Flop
30.1mm
Tire to Pedal Spindle Distance
With 175 mm cranks
84.1mm
Pedal Spindle to Ground Clearance
With 175 mm cranks
161.3mm

Base Build

Wheel Size
650B, 27.5 inch (584mm BSD)
Tire Width
4.5in
Tire Outer Diameter
812.6mm
Bike Length with Tires
1918.8mm
Crank Length
175mm
Handlebar Width
44cm
Stem Length
80mm
Suspension Type
Rigid, non-suspension corrected
Bar Type
Drop Bar
Frame Material
Titanium
Fork Material
Carbon/Composite
Brake Type
Disc

Published Sizing Recommendations

Height
5 ft 11 in
to
6 ft 2 in
Source:https://bearclawbicycleco.com/towmak/