2019 Gunnar Cycles USA Hyper-X Base

	48cm	50cm	52cm	54cm	56cm	58cm	60cm	62cm	64cm	66cm	68cm
Stack	548mm	550mm	555mm	570mm	589mm	608mm	627mm	646mm	665mm	684mm	706mm
Reach	377mm	377mm	382mm	390mm	389mm	389mm	393mm	397mm	401mm	399mm	403mm
Stack to Reach Ratio	1.45:1	1.46:1	1.45:1	1.46:1	1.51:1	1.56:1	1.6:1	1.63:1	1.66:1	1.71:1	1.75:1
Seat Tube Length, Unknown	480mm	500mm	520mm	540mm	560mm	580mm	600mm	620mm	640mm	660mm	680mm
Top Tube Length, Effective/Horizontal Unknown	525mm	530mm	540mm	555mm	565mm	575mm	585mm	595mm	605mm	615mm	625mm
Top Tube Slope	11deg	6deg	4.3deg	3.9deg	3.9deg	3.9deg	3.9deg	3.8deg	3.8deg	3.9deg	4.1deg
Head Tube Angle	71deg	71deg	71deg	72.5deg	72.5deg	72.5deg	72.5deg	72.5deg	72.5deg	72.5deg	73deg
Seat Tube Angle	75.5deg	75deg	74.5deg	74deg	73.5deg	73deg	73deg	73deg	73deg	72.5deg	72.5deg
Head Tube Length	113mm	115mm	120mm	130mm	149mm	169mm	189mm	209mm	230mm	250mm	250mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm	70mm	70mm	70mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	279mm	279mm	279mm	279mm	279mm	279mm	279mm	279mm	279mm	279mm	279mm
Chainstay Length	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm
Chainstay Length Horizontal	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm
Front-Center	598mm	598mm	602mm	600mm	606mm	611mm	621mm	631mm	641mm	646mm	648mm
Front-Center Horizontal	593.7mm	593.7mm	597.7mm	595.7mm	601.7mm	606.7mm	616.7mm	627.7mm	637.7mm	641.7mm	643.7mm
Wheelbase	1018mm	1018mm	1022mm	1020mm	1026mm	1031mm	1041mm	1052mm	1062mm	1066mm	1068mm
Fork Offset/Rake	50mm	50mm	47mm	47mm	47mm	47mm	47mm	47mm	47mm	47mm	45mm
Fork Length, Unknown	395mm	395mm	395mm	395mm	395mm	395mm	395mm	395mm	395mm	395mm	415mm
Trail	67.3mm high	67.3mm high	70.5mm high	60.8mm mid/neutral	60.8mm mid/neutral	60.8mm mid/neutral	60.8mm mid/neutral	60.8mm mid/neutral	60.8mm mid/neutral	60.8mm mid/neutral	59.6mm mid/neutral
Mechanical Trail	63.6mm	63.6mm	66.6mm	58mm	58mm	58mm	58mm	58mm	58mm	58mm	57mm
Wheel Flop	20.7mm	20.7mm	21.7mm	17.4mm	17.4mm	17.4mm	17.4mm	17.4mm	17.4mm	17.4mm	16.7mm
Tire to Pedal Spindle	79mm 170 mm cranks	79mm 170 mm cranks	83mm 170 mm cranks	81mm 170 mm cranks	87mm 170 mm cranks	92mm 170 mm cranks	102mm 170 mm cranks	112mm 170 mm cranks	122mm 170 mm cranks	127mm 170 mm cranks	129mm 170 mm cranks
Pedal Spindle to Ground Clearance	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks	109mm 170 mm cranks

	48cm	50cm	52cm	54cm	56cm	58cm	60cm	62cm	64cm	66cm	68cm
Wheel Size	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD	700C/29 in 622 mm BSD
Tire Width	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm
Tire Width Max	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	50mm	—
Tire Outer Diameter	698mm	698mm	698mm	698mm	698mm	698mm	698mm	698mm	698mm	698mm	698mm
Bike Length with Tires	1716mm	1716mm	1720mm	1718mm	1724mm	1729mm	1739mm	1750mm	1760mm	1764mm	1766mm

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

Cyclocross

Source:https://gunnarbikes.com/site/bikes/hyper-x/

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2019 Gunnar Cycles USA Hyper-X Base

Geometry

Base Build

Stack and Reach vs. Category Trend