2017 Gunnar Cycles USA Hyper-XX Base

	48	50	52	54	56	58	60	62	64
Stack	549mm	551mm	555mm	570mm	589mm	608mm	627mm	646mm	665mm
Reach	375mm	376mm	382mm	390mm	389mm	389mm	393mm	397mm	401mm
Stack to Reach Ratio	1.46:1	1.47:1	1.45:1	1.46:1	1.51:1	1.56:1	1.6:1	1.63:1	1.66:1
Seat Tube Length, C-T	480mm	500mm	520mm	540mm	560mm	580mm	600mm	620mm	640mm
Top Tube Length, Effective/Horizontal HT Top	525mm	530mm	540mm	555mm	565mm	575mm	585mm	595mm	605mm
Top Tube Slope	9.7deg	7.7deg	5.9deg	5.4deg	5.4deg	5.5deg	5.4deg	5.3deg	5.2deg
Head Tube Angle	71deg	71deg	71deg	72.5deg	72.5deg	72.5deg	72.5deg	72.5deg	72.5deg
Seat Tube Angle	75.5deg	75deg	74.5deg	74deg	73.5deg	73deg	73deg	73deg	73deg
Head Tube Length	113mm	115mm	120mm	130mm	149mm	169mm	189mm	209mm	230mm
Bottom Bracket Drop	70mm	70mm	70mm	70mm	70mm	70mm	70mm	70mm	70mm
Bottom Bracket Height	279mm	279mm	279mm	279mm	279mm	279mm	279mm	279mm	279mm
Chainstay Length	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm	430mm
Chainstay Length Max	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
Chainstay Length Horizontal Max	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm	424.3mm
Front-Center	592.9mm	594.9mm	601.8mm	599.8mm	605.8mm	610.8mm	620.7mm	631.6mm	641.6mm
Front-Center Horizontal	588.7mm	590.7mm	597.7mm	595.7mm	601.7mm	606.7mm	616.7mm	627.7mm	637.7mm
Wheelbase	1013mm	1015mm	1022mm	1020mm	1026mm	1031mm	1041mm	1052mm	1062mm
Wheelbase Max	1013mm	1015mm	1022mm	1020mm	1026mm	1031mm	1041mm	1052mm	1062mm
Fork Offset/Rake	47mm	47mm	47mm	47mm	47mm	47mm	47mm	47mm	47mm
Fork Length (Axle-To-Crown)	395mm	395mm	395mm	395mm	395mm	395mm	395mm	395mm	395mm
Trail	70.5mm high	70.5mm 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
Mechanical Trail	66.6mm	66.6mm	66.6mm	58mm	58mm	58mm	58mm	58mm	58mm
Wheel Flop	21.7mm	21.7mm	21.7mm	17.4mm	17.4mm	17.4mm	17.4mm	17.4mm	17.4mm
Standover Height	753mm	765mm	775mm	792mm	810mm	828mm	848mm	867mm	886mm
Tire to Pedal Spindle	73.9mm 170 mm cranks	75.9mm 170 mm cranks	82.8mm 170 mm cranks	80.8mm 170 mm cranks	86.8mm 170 mm cranks	91.8mm 170 mm cranks	101.7mm 170 mm cranks	112.6mm 170 mm cranks	122.6mm 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

	48	50	52	54	56	58	60	62	64
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
Tire Width	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm
Tire Width Max	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm	38mm
Tire Outer Diameter	698mm	698mm	698mm	698mm	698mm	698mm	698mm	698mm	698mm
Bike Length with Tires	1711mm	1713mm	1720mm	1718mm	1724mm	1729mm	1739mm	1750mm	1760mm

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:Bike Counterculture Geometry Database

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2017 Gunnar Cycles USA Hyper-XX Base

Geometry

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Stack and Reach vs. Category Trend