2022 Bearclaw Bicycle Co. TōWMAK Base

	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

	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

5 ft 6 in

5 ft 5 in

5 ft 8 in

5 ft 7 in

5 ft 10 in

5 ft 9 in

6 ft 0 in

5 ft 11 in

6 ft 2 in

6 ft 1 in

6 ft 4 in

6 ft 3 in

6 ft 6 in

6 ft 5 in

6 ft 8 in

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/

Suggest Bike Edit

2022 Bearclaw Bicycle Co. TōWMAK Base

Geometry

Base Build

Published Sizing Recommendations

Stack and Reach vs. Category Trend