2018 Bearclaw Bicycle Co. Thunderhawk 650b Road+

	48	51	52.5	54	55.5	57	58.5	60
Stack	555mm	563mm	574mm	583.5mm	595mm	604mm	613.5mm	623mm
Reach	365mm	373mm	380mm	381.5mm	386mm	390mm	394mm	398mm
Stack to Reach Ratio	1.52:1	1.51:1	1.51:1	1.53:1	1.54:1	1.55:1	1.56:1	1.57:1
Seat Tube Length, Unknown	480mm	510mm	525mm	540mm	555mm	570mm	585mm	600mm
Top Tube Length, Effective/Horizontal Center	520mm	535mm	545mm	555mm	565mm	575mm	585mm	595mm
Top Tube Slope	10.7deg	8.1deg	7.6deg	7.1deg	6.7deg	6.1deg	5.6deg	5.1deg
Head Tube Angle	69.5deg	70.5deg	71deg	71deg	71.5deg	71.5deg	71.5deg	71.5deg
Seat Tube Angle	74deg	73.5deg	73.5deg	73deg	72.8deg	72.5deg	72.3deg	72deg
Head Tube Length	125mm	130mm	140mm	150mm	160mm	170mm	180mm	190mm
Bottom Bracket Drop	68mm	68mm	68mm	68mm	68mm	68mm	68mm	68mm
Bottom Bracket Height	271mm	271mm	271mm	271mm	271mm	271mm	271mm	271mm
Chainstay Length	428mm	428mm	428mm	428mm	428mm	428mm	428mm	428mm
Chainstay Length Horizontal	422.6mm	422.6mm	422.6mm	422.6mm	422.6mm	422.6mm	422.6mm	422.6mm
Front-Center	598.8mm	599.8mm	605.3mm	610.2mm	613.7mm	620.7mm	628.1mm	635.1mm
Front-Center Horizontal	594.9mm	595.9mm	601.4mm	606.4mm	609.9mm	616.9mm	624.4mm	631.4mm
Wheelbase	1017.5mm	1018.5mm	1024mm	1029mm	1032.5mm	1039.5mm	1047mm	1054mm
Fork Offset/Rake	47mm	47mm	47mm	47mm	47mm	47mm	47mm	47mm
Fork Length, Unknown	400mm	400mm	400mm	400mm	400mm	400mm	400mm	400mm
Trail	76.6mm high	70.2mm high	67mm high	67mm high	63.9mm mid/neutral	63.9mm mid/neutral	63.9mm mid/neutral	63.9mm mid/neutral
Mechanical Trail	71.7mm	66.2mm	63.4mm	63.4mm	60.6mm	60.6mm	60.6mm	60.6mm
Wheel Flop	25.1mm	22.1mm	20.6mm	20.6mm	19.2mm	19.2mm	19.2mm	19.2mm
Tire to Pedal Spindle	89.8mm 170 mm cranks	90.8mm 170 mm cranks	96.3mm 170 mm cranks	98.7mm 172.5 mm cranks	102.2mm 172.5 mm cranks	109.2mm 172.5 mm cranks	114.1mm 175 mm cranks	121.1mm 175 mm cranks
Pedal Spindle to Ground Clearance	101mm 170 mm cranks	101mm 170 mm cranks	101mm 170 mm cranks	98.5mm 172.5 mm cranks	98.5mm 172.5 mm cranks	98.5mm 172.5 mm cranks	96mm 175 mm cranks	96mm 175 mm cranks

	48	51	52.5	54	55.5	57	58.5	60
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	47mm	47mm	47mm	47mm	47mm	47mm	47mm	47mm
Tire Width Max	60mm	60mm	60mm	60mm	60mm	60mm	60mm	60mm
Tire Outer Diameter	678mm	678mm	678mm	678mm	678mm	678mm	678mm	678mm
Bike Length with Tires	1695.5mm	1696.5mm	1702mm	1707mm	1710.5mm	1717.5mm	1725mm	1732mm
Crank Length	170mm	170mm	170mm	172.5mm	172.5mm	172.5mm	175mm	175mm
Handlebar Width	40cm	42cm	42cm	42cm	42cm	42cm	44cm	44cm
Stem Length	70mm	80mm	80mm	90mm	90mm	100mm	100mm	110mm

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

All-road/Gravel

Source:https://www.bearclawbicycleco.com/thunderhawk-titanium-650b-gravel-bike

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2018 Bearclaw Bicycle Co. Thunderhawk 650b Road+

Geometry

650b Road+ Build

Stack and Reach vs. Category Trend