2021 Bearclaw Bicycle Co. TōWMAK Base

Design
Drop Bar, Rigid, non-suspension corrected
Frame
Titanium
Fork
Carbon/Composite
Features
Disc brake
Average stack and reachvs category
Bar type unusual for category
This: Drop Bar
Category: Flat Bar
vs category
Somewhat upright stack and reachvs category
Bar type unusual for category
This: Drop Bar
Category: Flat Bar
vs category
Somewhat upright stack and reachvs category
Bar type unusual for category
This: Drop Bar
Category: Flat Bar
vs category
Somewhat upright stack and reachvs category
Bar type unusual for category
This: Drop Bar
Category: Flat Bar
vs category
Very upright stack and reachvs category
Bar type unusual for category
This: Drop Bar
Category: Flat Bar
vs category
Very upright stack and reachvs category
Bar type unusual for category
This: Drop Bar
Category: Flat Bar
vs category
Very upright stack and reachvs category
Bar type unusual for category
This: Drop Bar
Category: Flat Bar
vs category
Very upright stack and reachvs category
Bar type unusual for category
This: Drop Bar
Category: Flat Bar
vs category

Geometry

51
52.5
54
55.5
57
58.5
60
62
Stack
591.3mm
602.9mm
614.5mm
623.9mm
633.3mm
642.7mm
652.1mm
670.9mm
Reach
380.4mm
387.9mm
388mm
395.2mm
402.4mm
409.6mm
416.8mm
432mm
Stack to Reach Ratio
1.55:1
1.55:1
1.58:1
1.58:1
1.57:1
1.57:1
1.56:1
1.55:1
Seat Tube Length, C-T
510mm
525mm
540mm
555mm
570mm
585mm
600mm
620mm
Top Tube Length, Actual C-C
550mm
560mm
570mm
580mm
590mm
600mm
610mm
630.7mm
Top Tube Slope
11deg
10.5deg
10.1deg
9.4deg
8.7deg
8.1deg
7.5deg
7.2deg
Head Tube Angle
69deg
69.5deg
70deg
70deg
70deg
70deg
70deg
70deg
Seat Tube Angle
74deg
73.5deg
73.5deg
73.5deg
73.5deg
73.5deg
73.5deg
73.5deg
Head Tube Length
110mm
120mm
130mm
140mm
150mm
160mm
170mm
190mm
Bottom Bracket Drop
70mm
70mm
70mm
70mm
70mm
70mm
70mm
70mm
Bottom Bracket Height
336.3mm
336.3mm
336.3mm
336.3mm
336.3mm
336.3mm
336.3mm
336.3mm
Chainstay Length
450mm
450mm
450mm
450mm
450mm
450mm
450mm
450mm
Chainstay Length Horizontal
444.5mm
444.5mm
444.5mm
444.5mm
444.5mm
444.5mm
444.5mm
444.5mm
Front-Center
628.7mm
638.9mm
639.2mm
654.8mm
665.4mm
676mm
686.6mm
708.4mm
Front-Center Horizontal
624.8mm
635.1mm
635.4mm
651.1mm
661.7mm
672.4mm
683mm
705mm
Wheelbase
1069.3mm
1079.6mm
1079.9mm
1095.6mm
1106.2mm
1116.9mm
1127.5mm
1149.5mm
Fork Offset/Rake
51mm
51mm
51mm
51mm
51mm
51mm
51mm
51mm
Fork Length (On-Axis)
468mm
468mm
468mm
468mm
468mm
468mm
468mm
468mm
Trail
101.3mm
very high
97.5mm
very high
93.6mm
very high
93.6mm
very high
93.6mm
very high
93.6mm
very high
93.6mm
very high
93.6mm
very high
Mechanical Trail
94.6mm
91.3mm
88mm
88mm
88mm
88mm
88mm
88mm
Wheel Flop
33.9mm
32mm
30.1mm
30.1mm
30.1mm
30.1mm
30.1mm
30.1mm
Tire to Pedal Spindle
52.4mm
170 mm cranks
62.6mm
170 mm cranks
62.9mm
170 mm cranks
73.5mm
175 mm cranks
84.1mm
175 mm cranks
94.7mm
175 mm cranks
105.3mm
175 mm cranks
127.1mm
175 mm cranks
Pedal Spindle to Ground Clearance
166.3mm
170 mm cranks
166.3mm
170 mm cranks
166.3mm
170 mm cranks
161.3mm
175 mm cranks
161.3mm
175 mm cranks
161.3mm
175 mm cranks
161.3mm
175 mm cranks
161.3mm
175 mm cranks

Base Build

51
52.5
54
55.5
57
58.5
60
62
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
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
4.5in
4.5in
4.5in
4.5in
Tire Outer Diameter
812.6mm
812.6mm
812.6mm
812.6mm
812.6mm
812.6mm
812.6mm
812.6mm
Bike Length with Tires
1881.9mm
1892.2mm
1892.5mm
1908.2mm
1918.8mm
1929.5mm
1940.1mm
1962.1mm
Crank Length
170mm
170mm
170mm
175mm
175mm
175mm
175mm
175mm
Handlebar Width
42cm
42cm
42cm
44cm
44cm
44cm
46cm
46cm
Stem Length
60mm
70mm
70mm
80mm
80mm
90mm
90mm
100mm

Published Sizing Recommendations

Height
5 ft 4 in
to
5 ft 6 in
5 ft 5 in
to
5 ft 8 in
5 ft 7 in
to
5 ft 10 in
5 ft 9 in
to
6 ft 0 in
5 ft 11 in
to
6 ft 2 in
6 ft 1 in
to
6 ft 4 in
6 ft 3 in
to
6 ft 6 in
6 ft 5 in
to
6 ft 8 in

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 Scale
Category Trend
Rigid Fatbike
Source:https://bearclawbicycleco.com/towmak/